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Produced by our body’s cells, nitric oxide (N.O.) plays a big role in blood vessel health. N.O. may help naturally widen blood vessels to increase blood flow and simultaneously decrease blood pressure. It’s important to understand that supplements that claim to boost N.O. don’t actually contain N.O. — rather, they are made of other compounds that amp up the body’s production of N.O., most commonly l-arginine and l-citrulline. Many brands use ingredients like beetroot in their complexes — a popular addition in pre-workouts due to its potential to act as a vasodilator. (1)
While more research is needed to determine the efficacy of increased N.O. levels on athletic performance, there is some evidence that suggests it may aid in high intensity interval training (HIIT) and prolonged aerobic activity. (2)(3) Additionally, some athletes use it because they feel it gives them a bigger “pump” and vascularity while working out. For those who are eager to give N.O. a try, we rounded up and tested some of the best nitric oxide supplements on the market based on ingredients, dosage amounts, and the latest research.
The Best Nitric Oxide Supplements
Editor’s note: The content on BarBend is meant to be informative in nature, but it should not be taken as medical advice. The opinions and articles on this site are not intended for use as diagnosis, prevention, and/or treatment of health problems. It’s always a good idea to talk to your doctor before beginning a new fitness, nutritional, and/or supplement routine. Individual needs for vitamins and minerals will vary.
Best Nitric Oxide Supplements Video Review
While we still think you should read the rest of this article, you should also check out the video review as BarBend’s Nick English does a deep dive on our top Nitric Oxide supplements in 2023.
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Best Nitric Oxide Supplement Overall
We chose this as our top pick because it has all the right ingredients in the right doses. On top of that, the labeling is very clear, and the ingredients are high quality.
Huge Supplements Magnify N.O. Booster
Huge Supplements Magnify contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, the latter of which can help you absorb all these nitric-oxide boosting ingredients. All of these are clinical dosages for a nitric oxide supplement, and this supplement can be most effective if you take it 20 to 30 minutes before your workout.
Huge Supplements Magnify
Each six-capsule serving of this product contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, which can help with absorption. It's best to take Magnify 20 to 30 minutes before your workout.
Huge Supplements Magnify can even be stacked with their pre-workout Wrecked (or another similar pre-workout) for even better blood flow, and skin-splitting pumps. Each serving is six capsules, which may be a lot for some, but we like this because it allows us to easily vary how much we take each workout.
Who Should Buy Huge Supplements Magnify N.O. Booster
Athletes who want a nitric oxide supplement with a variety of ingredients that may help produce nitric oxide in the body will appreciate the ingredients list on this supplement.
Anyone who’s concerned with digestion. This product’s Bioperine can help with absorption.
People who like taking their nitric oxide supplement in capsule form rather than drinking it, and potentially feeling bloated.
Who Shouldn’t Buy Huge Supplements Magnify N.O. Booster
Pill-averse folks who may prefer a powder supplement can find alternatives on this list.
Vegans who are looking to avoid gelatin in their capsules will want to look elsewhere.
Buyers on a budget may be better off hunting for a more cost effective option.
With solid dosages of multiple ingredients that may help with nitric oxide production, this pick is ideal for those who may be willing to pay a little more for the variety of top notch ingredients.
[Related: The Best Types Of Supplements For Performance, Weight Loss, and Health]
Best Nitric Oxide Supplement (Runner Up)
While this product didn’t quite make the top of our list, it was a close second for its variety of ingredients that can potentially produce nitric oxide, clear labeling, and solid dosages.
Transparent Labs Nitric Oxide
This nitric oxide supplement is straight to the point with little pomp and pizzazz. Its heavy hitters are a hearty dose of 2,250mg of NO3-T®, which is a combination of arginine and betaine nitrate (1,250mg of arginine nitrate and 1,000mg of betaine nitrate). By combining the two together, the production of nitric oxide may be more stable and last longer through your workout. (4) Another included ingredient, which can potentially help manage oxidative stress, as well as encourage healthy blood flow, is l-glutathione dosed at 250mg — which is a solid amount. (5)
Transparent Labs Nitric Oxide
Pump up your lifting sessions and get your blood flowing with Transparent Labs Nitric Oxide. It features a potent blend of arginine nitrate and betaine nitrate called NO3-T® dosed at 2,250mg. Each four-capsule serving also contains antioxidants and ingredients to aid in absorption to extract the most out of each serving.
Pine bark extract and vitamin C (both dosed at 200mg) help to round out the antioxidants. Vitamin C doubles its usefulness by also potentially helping to aid in the absorption of NO3-T®. You’ll find AstraGin™ dosed at 50mg, which can potentially help you absorb everything.
The serving size on this product is four capsules, which makes it easy to regulate the amount you’re taking, but if you’re taking full servings, that may be a lot of pills to swallow. Each 30-serving container will cost you about $44.99 (or $38.24 if you subscribe to regular shipments). That works out to around $1.50 per serving for the one-time buy (or $1.27 per serving for the subscription).
Who Should Buy Transparent Labs Nitric Oxide
People who want a smooth and steady blood flow booster will appreciate the NO3-T formula, which can work to help make sure nitric oxide production is more stable and lasts longer. (4)
Anyone who is looking to extract the most they can from each serving of their N.O. booster. This product features ingredients, like AstraGin™ and vitamin C, that can help with absorption.
Someone who wants a straightforward nitric oxide booster. You won’t find any fillers or unnecessary ingredients here. Transparent Labs Nitric Oxide is free of artificial sweeteners, coloring, and preservatives.
Who Shouldn’t Buy Transparent Labs Nitric Oxide
Someone who prefers to take their N.O. supplements in powder form as this only comes in pill form.
Buyers who don’t like taking a bunch of pills may be overwhelmed by the four-capsule serving here. Some N.O. boosters pack their ingredients into one or two pills.
Athletes who want a more performance-oriented nitric oxide supplement with a wider range of ingredients, like stimulants or other common pre-workout-esque inclusions.
Transparent Labs Nitric Oxide is about as to-the-point as an N.O. booster can be. The nice thing about this product is that it can be stacked with other pre-workout products for even more potent potential effects. It can also be taken on its own to help promote blood flow at any time despite being geared toward workout enhancement.
Best Nitric Oxide Supplement For Pumps and Vascularity
If you’re pumping hard and looking for the vascular signs that your body fat may also be decreasing, nitric oxide may be able to help widen those veins and push them to the skin’s surface.
Transparent Labs Nitric Oxide
If you’ve ever experienced a solid pump, chances are you want to experience it again. Transparent Labs Nitric Oxide is a four-capsule dose of potent NO boosters like 1,250mg of arginine nitrate and 1,000mg of betaine nitrate, which combine together to form NO3-T®. The chemical composition of NO3-T® is said to help enhance the duration and stability of nitric oxide production. In other words, it might help to make your pump longer. (4) You’ll also receive antioxidants and potential absorption aids in the form of 250mg of L-glutathione, 200mg of pine bark extract, and 200mg of vitamin C. L-glutathione may also help with vascular support — those veins aren’t just for show. Additionally, the 50mg of AstraGin™ can potentially enhance gastrointestinal permeability. (7)
Transparent Labs Nitric Oxide
Pump up your lifting sessions and get your blood flowing with Transparent Labs Nitric Oxide. It features a potent blend of arginine nitrate and betaine nitrate called NO3-T® dosed at 2,250mg. Each four-capsule serving also contains antioxidants and ingredients to aid in absorption to extract the most out of each serving.
It’s worth noting that the recommended serving size here is four capsules, which some folks may find a bit daunting, especially if you’re already taking a bunch of other pill-based supplements. If you’re still on board and want to take the plunge for some skin-splitting pumps, then you can expect to pay around $44.99 per 30-serving capsule with a one-time purchase and $38.24 with a subscription. The per-serving price works out to about $1.50 or $1.27 for one-time purchases and subscriptions, respectively.
Who Should Buy Transparent Labs Nitric Oxide
Anyone looking for a great pump and vascular support, as the ingredients (like arginine and betaine) in this product are meant to work together while being well-dosed.
Folks who want additional ingredients included in their supplement to potentially help with absorption, such as AstraGin™. You’ll find that in the formula here.
Someone who wants a versatile nitric oxide supplement that they can take on its own or pair with a pre-workout.
Who Shouldn’t Buy Transparent Labs Nitric Oxide
People who aren’t keen on taking a lot of capsules — you have to take four of these to get the full serving size.
Anybody who prefers to take their NO products in powder form instead of pills. These only come in pill form.
Those who want more traditional pre-workout ingredients with their nitric oxide, such as creatine, glycerol, stimulants, or beta-alanine.
Transparent Labs Nitric Oxide has solid doses of each ingredient and can be paired with a pre-workout for some incredible pumps and vascularity. Taken by itself, this product can still help to promote solid pumps and won’t interfere with sleep if you work out later at night since there aren’t any stimulants here. NO supplements have the potential to improve blood flow and open up your blood vessels — Transparent Labs designed this product to achieve both.
Best Nitric Oxide Supplement For Citrulline
Citrulline is a non-essential amino acid that doesn’t play a role in building protein. Rather, it’s necessary for helping your body rid itself of harmful toxins. In regards to performance, this is the ingredient that can help widen the blood vessels to improve blood flow. (6)
Huge Supplements Pump Serum
Though technically a pre-workout, this stimulant-free product is our top pick for Citrulline because it contains 8,000mg of l-citrulline, which is higher than almost any other product we’ve seen. The high levels of citrulline combined with other patented ingredients, like GlyerPump™ — a form of glycerol powder that can help aid in hydration and nutrient absorption — makes this product a potent nitric oxide supplement. This supp also has 3,000mg of betaine to potentially help boost nitric oxide.
Huge Supplements Pump Serum
This pre-workout contains 8,000mg of l-citrulline. This high level of citrulline combined with other patented ingredients, like GlyerPump, make this product a potent nitric oxide supplement.
You’ll also find Bioperine, another ingredient that is included to potentially help with absorption, ensuring you get the most out of each scoop of Pump Serum. Huge Supplements made four great flavors to choose from as well — Strawberry Mojito, Jungle Juice, Cherry Berry, and Island Dream. Mix a scoop of this in eight to 12 ounces of water about 30 minutes before hitting the gym, and let the 17 clinically dosed ingredients do their thing.
Who Should Buy Huge Supplements Pump Serum
Athletes who want a stimulant-free pre-workout that is heavy on the citrulline to potentially help with blood flow.
Those who are concerned with absorption — the Bioperine and GlyerPump™ in this product are designed to maximize absorption.
Athletes who prefer a powder nitric oxide supplement to a pill nitric oxide supplement. You should mix this powder with eight to twelve ounces of water.
Who Shouldn’t Buy Huge Supplements Pump Serum
If you want a product with just citrulline, this is not it — while this product does contain 8g of citrulline, it also contains other nitric oxide-boosting supplements.
Buyers on a budget can find a less expensive nitric oxide product to purchase.
If you’re looking for a nitric oxide product that you can take whenever you like or multiple times per day, you should look elsewhere.
L-citrulline is known to increase blood flow, which is why many athletes take it to enhance their pumps. It is also linked to a boost in nitric oxide, and a widening of blood vessels, so this is a great addition to your supplement regimen for that purpose — especially for those who already have an interest in taking a citrulline supplement. (6)
Best Natural Nitric Oxide Supplement Blend
While some people may be looking for a dedicated citrulline supplement or beet juice to boost their nitric oxide production. Nitric oxide blends include a variety of ingredients that boast these potential effects, along with other helpful ingredients.
KOS Organic Beet Root Powder
KOS kept this product as simple as possible with only one ingredient — USDA organic beet root powder. Each scoop provides 4,000mg of beet root powder to potentially aid in blood flow, pump, and recovery. The beets used to make this product are carefully selected to be organic, non-GMO, and made in a good manufacturing practices facility.
KOS Organic Beet Root Powder
If you like short and easy to read ingredients lists you’ll love this organic product from KOS. It only contains one ingredients which is organic beet root powder. Each scoop contains 4,000mg of the stuff so you can get your beet powder in with no frills.
Thanks to the beet root itself, each scoop of this powder contains about 15 calories from four grams of carbs with no fat and no protein. You can snag a 90-serving container of this straightforward beet supplement for around $29.99 or approximately $0.33 per serving — a great price.
Who Should Buy KOS Organic Beet Root Powder
Those looking for an all-natural and organic beet root powder. That’s exactly what this is.
Folks who want an unflavored formula that they can mix into other flavored products or beverages.
Anyone who’s looking for a basic supplement that is only beet root powder without any extras.
Who Shouldn’t Buy KOS Organic Beet Root Powder
People who value a combination of ingredients can find a longer ingredient list out there.
Anyone who wants a flavored beet root supplement that they can drink by itself will want to check out other options.
Those who don’t care about buying a natural nitric oxide supplement may find other options’ formulas more appealing.
Not only is this beet root powder from KOS very well priced at around $0.33 per serving, it’s all-natural and organic with no unnecessary extras. The only ingredient is organic beet root powder with no frills (or even flavorings).
[Related: Could Baking Soda Be The Best Workout Supplement You’ve Never Tried?]
Best Nitric Oxide Pre-Workout Supplement
Some people like their nitric oxide supplement with a bit more of a kick. Often this comes in the form of caffeine and other stimulants. Huge Supplements has you covered if that’s the case, as their pre-workout features nitric oxide support prominently, as well as an additional dose of 350mg of caffeine.
Huge Supplements Wrecked
Similar to other nitric oxide supplements that can be used as a pre-workout, this pre-workout can be used as a nitric oxide supplement. It features a heavy-hitting dose of l-citrulline and betaine with 8,000mg and 3,000mg, respectively, along with 350mg of total caffeine. This pre-workout contains 17 clinically dosed ingredients meant to take your workout intensity to the next level, and give skin-tearing muscle pumps.
Huge Supplements Wrecked
This product packs 17 ingredients at high doses, including 8,000mg of citrulline, 3,500mg of beta alanine, 250mg of caffeine, and 3,000mg of betaine anhydrous. Plus, you’ll find 1,500mg of tyrosine and 197mg of Himalayan pink sea salt, as well.
The inclusion of Bioperine, a black pepper extract, is meant to help with absorption, so you can make use of all the great ingredients in this supplement. It comes in four awesome flavors — Bomb Popsicle, Peach Rings, Rainbow Burst, and Raspberry Mojito — with 20 servings per container.
Who Should Buy Huge Supplements Wrecked
Athletes who want to get all the benefits of a high-quality nitric oxide supplement, but need a bit of energy too from the 350mg of total caffeine in this product.
Anyone who is using a nitric oxide supplement as a pre-workout rather than just for vascular support. This product is the full pre-workout package.
People who enjoy long cardio sessions — the 8g of l-citrulline and 3,500mg of beta-alanine can help with endurance and stamina.
Who Shouldn’t Buy Huge Supplements Wrecked
Someone who wants something without caffeine — this has 350mg per serving.
Anyone who works out later in the evening. The stimulants in this may interfere with sleep if taken later on in the day.
Someone who is looking strictly for a nitric oxide supplement, not a full on pre-workout.
With a large dose of l-citrulline combined with other ingredients designed to support vascular health and blood flow, Huge Supplements Wrecked is no joke. Give this pre-workout a try if you’re looking to get your blood pumping.
[Related: Study: Fruits And Vegetables May Help Switch Off Genes Responsible For Obesity]
Best Nitric Oxide Beet Root Supplement
Since beets are rich in nitrate (which your body can turn into nitric oxide), many people turn to beet root for nitric oxide supplementation. This product has a solid dose of beet root for this purpose.
KOS Beet Root Powder
If you’re looking for a beet root supplement to potentially aid in nitric oxide production, then we think you’ll like this product from KOS because it features just one ingredient. Each scoop provides 4,000mg of pure beet root powder and nothing else — no added sugars, no flavorings, and no extras. We should note that this also provides 15 calories from four carbs per serving.
KOS Organic Beet Root Powder
If you like short and easy to read ingredients lists you’ll love this organic product from KOS. It only contains one ingredients which is organic beet root powder. Each scoop contains 4,000mg of the stuff so you can get your beet powder in with no frills.
This likely isn’t the best powder to drink on its own as there is no flavoring, but it mixes well into water with other supplements or with other flavored beverages. KOS sells this powder in a 90-serving container for around $29.99, which works out to about $0.33 per serving — making this rather conservatively priced.
Who Should Buy KOS Beet Root Powder
Anyone who prefers to mix their beet root supplement into water will like that this product mixes easily with eight ounces of water or can be mixed into other supplements.
Those who want a straightforward beet root product will appreciate that beet powder is the only ingredient in this product.
Customers who are on a budget. This is priced well so that each container can go a long way.
Who Shouldn’t Buy KOS Beet Root Powder
Anyone who wants a beet root supplement that also contains other nitric oxide supplements in addition to the beet root.
Buyers who want a flavored beet root supplement or one that they can easily drink on its own.
Folks who don’t want to have to drink their nitric oxide supplement and would rather take a pill.
Overall, this is a solid option for those who want a product that simply contains beet root as that is the only ingredient in this powder. It’s also easy on the wallet and all natural, which many people appreciate.
Best Nitric Oxide Supplement Pill
Some people may prefer to get their nitric oxide supplements in powder form or from beet juice, but pills are often the most convenient way to ingest this type of supplement. They can make taking different amounts easier, as you can just take fewer pills rather than measuring out partial scoops. Huge Supplements Magnify N.O. Booster has you covered if you fall into this category.
Huge Supplements Magnify N.O. Booster
There is no question, pills are just easier to transport and take. No mixing is required, and you won’t make a mess in the gym locker room trying to scoop powder into a water bottle when you inevitably forget your shaker bottle. Huge Supplements Magnify N.O. Booster is one of our favorite N.O. supplements on the market right now, and for good reason. Each six capsule serving contains a potent amount of l-arginine, beet root extract, and l-citrulline, among other ingredients.The capsules are made from gelatin, an animal product, so vegans may want to look elsewhere on this list for an N.O. booster.
Huge Supplements Magnify
Each six-capsule serving of this product contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, which can help with absorption. It's best to take Magnify 20 to 30 minutes before your workout.
The inclusion of Bioperine can also help to ensure that you absorb all that you can of the ingredients for the best results. You can rest assured that you’re getting a high quality product too since this supplement is made in an FDA approved facility, and is good manufacturing practices certified. Just take the six capsule dose about 20 or 30 minutes before your workout, and you should be ready to crush it.
Who Should Buy Huge Supplements Magnify N.O. Booster
Anyone who travels a lot and wants a convenient nitric oxide supplement that they can take on the go with no fuss and no mess.
Anyone who wants a dose of bioperine in their supplement to potentially help with absorption.
Someone who wants a N.O. booster that is stim-free — this is just blood flow support with no stimulants.
Who Shouldn’t Buy Huge Supplements Magnify N.O. Booster
Someone who is looking for more of a kick with their N.O. booster may opt for something with caffeine in it.
Those with a black pepper allergy — this product does contain bioperine.
Athletes who have trouble taking pills or don’t want to take multiple pills — this is a six capsule serving size.
Vegans may want to look for another option — the capsules here are made with gelatin.
This product contains potent nitric oxide support in a six capsule dose, and is super convenient to throw in your gym bag or cabinet, taking up minimal space.
When Should I Take Nitric Oxide Supplements?
Though there isn’t really a set time you should take nitric oxide — as your body needs nitric oxide to promote immune and heart health as well — for exercise purposes, it is best to consume it prior to a workout. Since nitric oxide can potentially widen blood vessels and increase blood flow, you’ll want to take it right before exercise (approximately 20 to 30 minutes before) for optimal pumps. (8)
It’s worth noting that if you are taking a nitric oxide supplement daily, it’s best to get it from a natural source like beetroot. While these supplements aren’t inherently dangerous, if you can get your nitric oxide from a more natural source, that’s always going to be a healthier alternative overall. (9)
Benefits of Nitric Oxide
There are several benefits to adding a nitric oxide supplement to your regimen. Most notable is its potential to be a vasodilator. This means that nitric oxide has the ability to widen blood vessels, which can allow for better blood flow. This may be noticeable by gymgoers as the feeling of achieving a “pump”. Nitric oxide also may promote immune and heart health (the heart is what allows our blood to pump).
It may also play a role in improving high-intensity training, as well as aerobic exercise. (2)(3) One study suggested that supplementing with nitric oxide-rich beetroot led to a 15 percent increase in working capacity before hitting fatigue and exhaustion. (3) This may be because vasodilation can help with better circulation and heartbeat regulation, or because N.O.’s potential to enhance oxygen and nutrient delivery to the muscles may delay that feeling of fatigue and allow you to work out for longer. (10)
How We Chose The Best Nitric Oxide Products
There are a host of nitric oxide supplements available, many of which can make outlandish claims about their effectiveness. Here’s how we selected the best nitric oxide supplements that can actually be effective.
L-arginine vs. L-citrulline
Two of the most common ingredients featured in N.O. boosters are the amino acids arginine and citrulline. Both are believed to play a role in helping our cells create more nitric oxide (N.O.), which can help generate a “pump” in the gym. The effectiveness of these amino acids is not entirely known, as more research is needed. However, there is some evidence to suggest that citrulline may be a more effective N.O. booster than arginine. We have included picks that contain both on this list, so you’ll have an option no matter your preference.
Beetroot
Beetroot is also used in many N.O. supplements because it has a high content of dietary nitrate, which has been shown to increase blood levels of nitrate, nitrite, and biologically active N.O. According to a study in Cureus, it has also been “observed to enhance athletic performance in healthy individuals.”
Image From ShutterStock/Anna_Pustynnikova
However, benefits may depend on individual aerobic fitness levels. “Dietary nitrate supplementation appears to have a favorable effect on training performance in some patient populations.” (11) We have included options both with and without beetroot on this list, so if you prefer a nitric oxide supplement in a more natural form, beetroot is an option for you.
Dosage
We skewed our picks toward more well-rounded dosages of multiple amino acids. While these doses won’t necessarily work for everyone, they tend to be the most effective doses for the general population. It’s wise to consult with a medical professional before starting on any dosage of a N.O. supplement. Be sure to pay special attention to how much of each amino acid or natural ingredient is listed on each label, not just for safety reasons, but also to ensure that the dosage of your target amino acid aligns with what is supplied in the product.
[Related: 10 Kinds Of Creatine And What They All Mean]
Ingredients
When shopping for any supplement, we took a close look at all the ingredients. We know some brands incorporate unnecessary or superfluous ingredients to beef up their recipes. There can be some benefits to that — an example is the use of coffee (read: caffeine) in order to increase energy levels temporarily. If you see any of these types of ingredients on this list, rest assured that they serve a purpose in their respective N.O. supplements — we did not include any products with unnecessary ingredients or additives here.
L-Citrulline vs. Citrulline Malate
Not knowing the difference between these two amino acids is not uncommon. Fortunately, they are different enough that they must be listed differently, but for anyone looking to take citrulline, either can get the job done.
The actual difference between l-citrulline and citrulline is that the former is free-form while the latter combines citrulline and malic acid. Malic acid is a natural supplement found in fruits like apples that helps to promote the creation of energy for your cells. As a citrulline supplement, both function the same.
[Related: 7 Pre-Workout Ingredients You Can Take For A Better Pump]
How Much Does Nitric Oxide Cost?
As far as supplements go, nitric oxide supplements are generally inexpensive. When calculating cost, it’s better to look at the cost per serving, rather than the overall cost of the container. To do this, you’ll need to consider both the number of servings you’re getting and the overall cost of the product.
Best Nitric Oxide Supplement Overall
Huge Supplements Magnify N.O. Booster
$39.95
$1.19 per serving
Best Nitric Oxide Supplement (Runner Up)
Transparent Labs Nitric Oxide
$44.99
$1.50 per serving
Best Nitric Oxide Supplement for Pump and Vascularity
Transparent Labs Nitric Oxide
$44.99
$1.50 per serving
Best Nitric Oxide for Citrulline
Huge Supplements Beet Root Powder
$54.95
$1.37 per serving
Best Natural Nitric Oxide Supplement Blend
KOS Organic Beet Root Powder
$29.99
$0.33 per serving
Best Nitric Oxide Pre-Workout Supplement
Huge Supplements Wrecked Pre-Workout
$49.95
$1.25 per serving
Best Nitric Oxide Beet Root Supplement
KOS Organic Beet Root Powder
$29.99
$0.33 per serving
Best Nitric Oxide Pill
Huge Supplements Magnify N.O. Booster
$39.99
$1.99 per serving
The cost of nitric oxide supplements typically ranges anywhere from $1.00 to $2.00 per serving depending on the product and its ingredients. There are some on this list that reach a higher point at around $2.50, but we included a variety of options to make sure each person can find something that fits their needs. The average price per serving is $1.83, so none of these prices are outrageous, but you’ll find a nice in-between price with several of these picks.
A pre-workout that contains nitric oxide-boosting ingredients is going to be more expensive because it contains more amino acids, vitamins, and minerals than basic nitric oxide supplements. And on the other hand, if you’re getting a simple citrulline supplement that’s just one single ingredient, you’re going to pay far less.
What To Consider Before Buying Nitric Oxide
Nitric oxide supplements come in a variety of forms and contain an equal variety of ingredients. Before choosing your perfect pick, make sure you know exactly what you want to get out of your supplement.
Pill vs. Powder
Nitric Oxide supplements come in both pill and powder form. Neither is totally inconvenient, but pills are definitely the most convenient of the two, as you can easily throw a bottle in your bag, head out the door, and take a couple any time that works for you.
Image from Shutterstock / Lebedev Roman Olegovich
However, pills tend to digest slower than powder since your body has to break through the capsule. Therefore, if you’re looking for the nitric oxide supplement to kick in right away, a powder that you mix with liquid to consume directly is a better choice. Neither is more effective than the other overall — it’s all about your personal preferences and priorities.
Powder formulas also might lend enjoyability as a factor. If you enjoy tasty beverages, or you want to up your hydration, a powder formula can be a great way to do that. It’s also possible to find an unflavored powder to stack with your other supplements, which can help ensure you’re taking the supps you want with the most ease.
Ingredients
When determining which N.O. supplement to choose from, it’s wise to get a sense of how much of each amino acid or any other ingredient combinations are used. Each choice on our list has a different dosage for each amino acid. Some have very slim ingredient lists while others are rather extensive, both of which offer particular benefits. Before you choose which nitric oxide to buy, make sure you know what ingredients and combinations of ingredients you want in your supplement, so you are not overpaying for a more robust ingredient list than you need.
Speak to a Medical Professional
N.O. supplements are not for everyone. Consult a medical professional before beginning to use these. If you decide to use an N.O. supplement, start slow. Different compounds can have different effects for some folks; instead of going straight for a full dose, it may be wise to start with a half dose and see how you feel. A medical professional can help you make the right decision for your body.
Final Word
Nitric oxide supplements offer some variety compared to other supplements on the market. Since these supplements don’t contain nitric oxide — only ingredients that boost nitric oxide production — the ingredients tend to vary from product to product. You’ll find some that contain l-arginine, some have l-citrulline, some boast beetroot, and others provide a combination of these (and other ingredients).
With the enticing prospect of potentially better blood flow, gnarlier pumps, and improved performance in high-intensity exercise, nitric oxide is a well-desired aid for your workouts. Deciding which nitric oxide-boosting ingredients suit your regimen best will be your greatest challenge when adding supps like these to your stack. But our hope is that you allow this list to be your guide to the top N.O. product for your fitness and nutrition goals.
FAQs
What is the best nitric oxide supplement?Although there are many great supplements on the market that may enhance nitric oxide production, we believe that Huge Supplements Magnify N.O. booster wins the top spot as the best nitric oxide supp. It contains three potentially N.O. boosting ingredients, as well as Bioperine, which may make all of these ingredients easier to absorb.
How much do nitric oxide supplements cost?Since there is a wide variety of N.O. supplements on the market, the prices will vary in the same way. We found the average price point to be $1.83 per serving, but you can find cheaper and more expensive alternatives. This list ranges between about $1.50 and $2.50 per serving.
What foods are high in nitric oxide?While no foods contain nitric oxide, some foods contain nitrates that may help boost nitric oxide levels. Beets are among the most well-researched foods that may lead to higher levels of nitric oxide.
References
Moncada S, Palmer RM, Higgs EA. The discovery of nitric oxide as the endogenous nitrovasodilator. Hypertension (Dallas, Tex?: 1979). 1988;12(4):365-372.?
Wylie LJ, Mohr M, Krustrup P, et al. Dietary nitrate supplementation improves team sport-specific intense intermittent exercise performance. European journal of applied physiology. 2013;113(7):1673-1684.
Lansley KE, Winyard PG, Fulford J, et al. Dietary nitrate supplementation reduces the O2 cost of walking and running: a placebo-controlled study. Journal of applied physiology (Bethesda, Md?: 1985). 2011;110(3):591-600.
Münzel, T., Daiber, A., & Gori, T. (2011). Nitrate therapy: new aspects concerning molecular action and tolerance. Circulation, 123(19), 2132–2144. https://doi.org/10.1161/CIRCULATIONAHA.110.981407
Schmitt, B., Vicenzi, M., Garrel, C., & Denis, F. M. (2015). Effects of N-acetylcysteine, oral glutathione (GSH) and a novel sublingual form of GSH on oxidative stress markers: A comparative crossover study. Redox biology, 6, 198–205. https://doi.org/10.1016/j.redox.2015.07.012
Coles, K. E. (2007). Investigation into the antioxidant capacity of l-arginine and l-citrulline in relation to their vascular protective properties. Cardiff University (United Kingdom).
Wang, Q. Z., Chen, X. P., Huang, J. P., & Jiang, X. W. (2015). Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine, 35(11), 1307–1312.
Mosher SL, Sparks SA, Williams EL, Bentley DJ, Mc Naughton LR. Ingestion of a Nitric Oxide Enhancing Supplement Improves Resistance Exercise Performance. J Strength Cond Res. 2016 Dec;30(12):3520-3524. doi: 10.1519/JSC.0000000000001437. PMID: 27050244.
Bryan NS. Functional Nitric Oxide Nutrition to Combat Cardiovascular Disease. Curr Atheroscler Rep. 2018 Mar 17;20(5):21. doi: 10.1007/s11883-018-0723-0. PMID: 29550903.
Bescós R, Sureda A, Tur JA, Pons A. The effect of nitric-oxide-related supplements on human performance. Sports Med. 2012 Feb 1;42(2):99-117. doi: 10.2165/11596860-000000000-00000. PMID: 22260513.
Hanna Olsson, et al. Physiological Effects of Beetroot in Athletes and Patients. (2019). Cureus. doi: 10.7759/cureus.6355.
Produced by our body’s cells, nitric oxide (N.O.) plays a big role in blood vessel health. N.O. may help naturally widen blood vessels to increase blood flow and simultaneously decrease blood pressure. It’s important to understand that supplements that claim to boost N.O. don’t actually contain N.O. — rather, they are made of other compounds that amp up the body’s production of N.O., most commonly l-arginine and l-citrulline. Many brands use ingredients like beetroot in their complexes — a popular addition in pre-workouts due to its potential to act as a vasodilator. (1)
While more research is needed to determine the efficacy of increased N.O. levels on athletic performance, there is some evidence that suggests it may aid in high intensity interval training (HIIT) and prolonged aerobic activity. (2)(3) Additionally, some athletes use it because they feel it gives them a bigger “pump” and vascularity while working out. For those who are eager to give N.O. a try, we rounded up and tested some of the best nitric oxide supplements on the market based on ingredients, dosage amounts, and the latest research.
The Best Nitric Oxide Supplements
Editor’s note: The content on BarBend is meant to be informative in nature, but it should not be taken as medical advice. The opinions and articles on this site are not intended for use as diagnosis, prevention, and/or treatment of health problems. It’s always a good idea to talk to your doctor before beginning a new fitness, nutritional, and/or supplement routine. Individual needs for vitamins and minerals will vary.
Best Nitric Oxide Supplements Video Review
While we still think you should read the rest of this article, you should also check out the video review as BarBend’s Nick English does a deep dive on our top Nitric Oxide supplements in 2023.
Best Nitric Oxide Supplement Overall
We chose this as our top pick because it has all the right ingredients in the right doses. On top of that, the labeling is very clear, and the ingredients are high quality.
Huge Supplements Magnify N.O. Booster
Huge Supplements Magnify contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, the latter of which can help you absorb all these nitric-oxide boosting ingredients. All of these are clinical dosages for a nitric oxide supplement, and this supplement can be most effective if you take it 20 to 30 minutes before your workout.
Huge Supplements Magnify
Each six-capsule serving of this product contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, which can help with absorption. It's best to take Magnify 20 to 30 minutes before your workout.
Huge Supplements Magnify can even be stacked with their pre-workout Wrecked (or another similar pre-workout) for even better blood flow, and skin-splitting pumps. Each serving is six capsules, which may be a lot for some, but we like this because it allows us to easily vary how much we take each workout.
Who Should Buy Huge Supplements Magnify N.O. Booster
[Related: The Best Types Of Supplements For Performance, Weight Loss, and Health]
Best Nitric Oxide Supplement (Runner Up)
While this product didn’t quite make the top of our list, it was a close second for its variety of ingredients that can potentially produce nitric oxide, clear labeling, and solid dosages.
Transparent Labs Nitric Oxide
This nitric oxide supplement is straight to the point with little pomp and pizzazz. Its heavy hitters are a hearty dose of 2,250mg of NO3-T®, which is a combination of arginine and betaine nitrate (1,250mg of arginine nitrate and 1,000mg of betaine nitrate). By combining the two together, the production of nitric oxide may be more stable and last longer through your workout. (4) Another included ingredient, which can potentially help manage oxidative stress, as well as encourage healthy blood flow, is l-glutathione dosed at 250mg — which is a solid amount. (5)
Transparent Labs Nitric Oxide
Pump up your lifting sessions and get your blood flowing with Transparent Labs Nitric Oxide. It features a potent blend of arginine nitrate and betaine nitrate called NO3-T® dosed at 2,250mg. Each four-capsule serving also contains antioxidants and ingredients to aid in absorption to extract the most out of each serving.
Pine bark extract and vitamin C (both dosed at 200mg) help to round out the antioxidants. Vitamin C doubles its usefulness by also potentially helping to aid in the absorption of NO3-T®. You’ll find AstraGin™ dosed at 50mg, which can potentially help you absorb everything.
The serving size on this product is four capsules, which makes it easy to regulate the amount you’re taking, but if you’re taking full servings, that may be a lot of pills to swallow. Each 30-serving container will cost you about $44.99 (or $38.24 if you subscribe to regular shipments). That works out to around $1.50 per serving for the one-time buy (or $1.27 per serving for the subscription).
Who Should Buy Transparent Labs Nitric Oxide
Best Nitric Oxide Supplement For Pumps and Vascularity
If you’re pumping hard and looking for the vascular signs that your body fat may also be decreasing, nitric oxide may be able to help widen those veins and push them to the skin’s surface.
Transparent Labs Nitric Oxide
If you’ve ever experienced a solid pump, chances are you want to experience it again. Transparent Labs Nitric Oxide is a four-capsule dose of potent NO boosters like 1,250mg of arginine nitrate and 1,000mg of betaine nitrate, which combine together to form NO3-T®. The chemical composition of NO3-T® is said to help enhance the duration and stability of nitric oxide production. In other words, it might help to make your pump longer. (4) You’ll also receive antioxidants and potential absorption aids in the form of 250mg of L-glutathione, 200mg of pine bark extract, and 200mg of vitamin C. L-glutathione may also help with vascular support — those veins aren’t just for show. Additionally, the 50mg of AstraGin™ can potentially enhance gastrointestinal permeability. (7)
Transparent Labs Nitric Oxide
Pump up your lifting sessions and get your blood flowing with Transparent Labs Nitric Oxide. It features a potent blend of arginine nitrate and betaine nitrate called NO3-T® dosed at 2,250mg. Each four-capsule serving also contains antioxidants and ingredients to aid in absorption to extract the most out of each serving.
It’s worth noting that the recommended serving size here is four capsules, which some folks may find a bit daunting, especially if you’re already taking a bunch of other pill-based supplements. If you’re still on board and want to take the plunge for some skin-splitting pumps, then you can expect to pay around $44.99 per 30-serving capsule with a one-time purchase and $38.24 with a subscription. The per-serving price works out to about $1.50 or $1.27 for one-time purchases and subscriptions, respectively.
Who Should Buy Transparent Labs Nitric Oxide
Best Nitric Oxide Supplement For Citrulline
Citrulline is a non-essential amino acid that doesn’t play a role in building protein. Rather, it’s necessary for helping your body rid itself of harmful toxins. In regards to performance, this is the ingredient that can help widen the blood vessels to improve blood flow. (6)
Huge Supplements Pump Serum
Though technically a pre-workout, this stimulant-free product is our top pick for Citrulline because it contains 8,000mg of l-citrulline, which is higher than almost any other product we’ve seen. The high levels of citrulline combined with other patented ingredients, like GlyerPump™ — a form of glycerol powder that can help aid in hydration and nutrient absorption — makes this product a potent nitric oxide supplement. This supp also has 3,000mg of betaine to potentially help boost nitric oxide.
Huge Supplements Pump Serum
This pre-workout contains 8,000mg of l-citrulline. This high level of citrulline combined with other patented ingredients, like GlyerPump, make this product a potent nitric oxide supplement.
You’ll also find Bioperine, another ingredient that is included to potentially help with absorption, ensuring you get the most out of each scoop of Pump Serum. Huge Supplements made four great flavors to choose from as well — Strawberry Mojito, Jungle Juice, Cherry Berry, and Island Dream. Mix a scoop of this in eight to 12 ounces of water about 30 minutes before hitting the gym, and let the 17 clinically dosed ingredients do their thing.
Who Should Buy Huge Supplements Pump Serum
Best Natural Nitric Oxide Supplement Blend
While some people may be looking for a dedicated citrulline supplement or beet juice to boost their nitric oxide production. Nitric oxide blends include a variety of ingredients that boast these potential effects, along with other helpful ingredients.
KOS Organic Beet Root Powder
KOS kept this product as simple as possible with only one ingredient — USDA organic beet root powder. Each scoop provides 4,000mg of beet root powder to potentially aid in blood flow, pump, and recovery. The beets used to make this product are carefully selected to be organic, non-GMO, and made in a good manufacturing practices facility.
KOS Organic Beet Root Powder
If you like short and easy to read ingredients lists you’ll love this organic product from KOS. It only contains one ingredients which is organic beet root powder. Each scoop contains 4,000mg of the stuff so you can get your beet powder in with no frills.
Thanks to the beet root itself, each scoop of this powder contains about 15 calories from four grams of carbs with no fat and no protein. You can snag a 90-serving container of this straightforward beet supplement for around $29.99 or approximately $0.33 per serving — a great price.
Who Should Buy KOS Organic Beet Root Powder
[Related: Could Baking Soda Be The Best Workout Supplement You’ve Never Tried?]
Best Nitric Oxide Pre-Workout Supplement
Some people like their nitric oxide supplement with a bit more of a kick. Often this comes in the form of caffeine and other stimulants. Huge Supplements has you covered if that’s the case, as their pre-workout features nitric oxide support prominently, as well as an additional dose of 350mg of caffeine.
Huge Supplements Wrecked
Similar to other nitric oxide supplements that can be used as a pre-workout, this pre-workout can be used as a nitric oxide supplement. It features a heavy-hitting dose of l-citrulline and betaine with 8,000mg and 3,000mg, respectively, along with 350mg of total caffeine. This pre-workout contains 17 clinically dosed ingredients meant to take your workout intensity to the next level, and give skin-tearing muscle pumps.
Huge Supplements Wrecked
This product packs 17 ingredients at high doses, including 8,000mg of citrulline, 3,500mg of beta alanine, 250mg of caffeine, and 3,000mg of betaine anhydrous. Plus, you’ll find 1,500mg of tyrosine and 197mg of Himalayan pink sea salt, as well.
The inclusion of Bioperine, a black pepper extract, is meant to help with absorption, so you can make use of all the great ingredients in this supplement. It comes in four awesome flavors — Bomb Popsicle, Peach Rings, Rainbow Burst, and Raspberry Mojito — with 20 servings per container.
Who Should Buy Huge Supplements Wrecked
[Related: Study: Fruits And Vegetables May Help Switch Off Genes Responsible For Obesity]
Best Nitric Oxide Beet Root Supplement
Since beets are rich in nitrate (which your body can turn into nitric oxide), many people turn to beet root for nitric oxide supplementation. This product has a solid dose of beet root for this purpose.
KOS Beet Root Powder
If you’re looking for a beet root supplement to potentially aid in nitric oxide production, then we think you’ll like this product from KOS because it features just one ingredient. Each scoop provides 4,000mg of pure beet root powder and nothing else — no added sugars, no flavorings, and no extras. We should note that this also provides 15 calories from four carbs per serving.
KOS Organic Beet Root Powder
If you like short and easy to read ingredients lists you’ll love this organic product from KOS. It only contains one ingredients which is organic beet root powder. Each scoop contains 4,000mg of the stuff so you can get your beet powder in with no frills.
This likely isn’t the best powder to drink on its own as there is no flavoring, but it mixes well into water with other supplements or with other flavored beverages. KOS sells this powder in a 90-serving container for around $29.99, which works out to about $0.33 per serving — making this rather conservatively priced.
Who Should Buy KOS Beet Root Powder
Best Nitric Oxide Supplement Pill
Some people may prefer to get their nitric oxide supplements in powder form or from beet juice, but pills are often the most convenient way to ingest this type of supplement. They can make taking different amounts easier, as you can just take fewer pills rather than measuring out partial scoops. Huge Supplements Magnify N.O. Booster has you covered if you fall into this category.
Huge Supplements Magnify N.O. Booster
There is no question, pills are just easier to transport and take. No mixing is required, and you won’t make a mess in the gym locker room trying to scoop powder into a water bottle when you inevitably forget your shaker bottle. Huge Supplements Magnify N.O. Booster is one of our favorite N.O. supplements on the market right now, and for good reason. Each six capsule serving contains a potent amount of l-arginine, beet root extract, and l-citrulline, among other ingredients.The capsules are made from gelatin, an animal product, so vegans may want to look elsewhere on this list for an N.O. booster.
Huge Supplements Magnify
Each six-capsule serving of this product contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, which can help with absorption. It's best to take Magnify 20 to 30 minutes before your workout.
The inclusion of Bioperine can also help to ensure that you absorb all that you can of the ingredients for the best results. You can rest assured that you’re getting a high quality product too since this supplement is made in an FDA approved facility, and is good manufacturing practices certified. Just take the six capsule dose about 20 or 30 minutes before your workout, and you should be ready to crush it.
Who Should Buy Huge Supplements Magnify N.O. Booster
When Should I Take Nitric Oxide Supplements?
Though there isn’t really a set time you should take nitric oxide — as your body needs nitric oxide to promote immune and heart health as well — for exercise purposes, it is best to consume it prior to a workout. Since nitric oxide can potentially widen blood vessels and increase blood flow, you’ll want to take it right before exercise (approximately 20 to 30 minutes before) for optimal pumps. (8)
It’s worth noting that if you are taking a nitric oxide supplement daily, it’s best to get it from a natural source like beetroot. While these supplements aren’t inherently dangerous, if you can get your nitric oxide from a more natural source, that’s always going to be a healthier alternative overall. (9)
Benefits of Nitric Oxide
There are several benefits to adding a nitric oxide supplement to your regimen. Most notable is its potential to be a vasodilator. This means that nitric oxide has the ability to widen blood vessels, which can allow for better blood flow. This may be noticeable by gymgoers as the feeling of achieving a “pump”. Nitric oxide also may promote immune and heart health (the heart is what allows our blood to pump).
It may also play a role in improving high-intensity training, as well as aerobic exercise. (2)(3) One study suggested that supplementing with nitric oxide-rich beetroot led to a 15 percent increase in working capacity before hitting fatigue and exhaustion. (3) This may be because vasodilation can help with better circulation and heartbeat regulation, or because N.O.’s potential to enhance oxygen and nutrient delivery to the muscles may delay that feeling of fatigue and allow you to work out for longer. (10)
How We Chose The Best Nitric Oxide Products
There are a host of nitric oxide supplements available, many of which can make outlandish claims about their effectiveness. Here’s how we selected the best nitric oxide supplements that can...
Click here to view the article.
While more research is needed to determine the efficacy of increased N.O. levels on athletic performance, there is some evidence that suggests it may aid in high intensity interval training (HIIT) and prolonged aerobic activity. (2)(3) Additionally, some athletes use it because they feel it gives them a bigger “pump” and vascularity while working out. For those who are eager to give N.O. a try, we rounded up and tested some of the best nitric oxide supplements on the market based on ingredients, dosage amounts, and the latest research.
The Best Nitric Oxide Supplements
Editor’s note: The content on BarBend is meant to be informative in nature, but it should not be taken as medical advice. The opinions and articles on this site are not intended for use as diagnosis, prevention, and/or treatment of health problems. It’s always a good idea to talk to your doctor before beginning a new fitness, nutritional, and/or supplement routine. Individual needs for vitamins and minerals will vary.
Best Nitric Oxide Supplements Video Review
While we still think you should read the rest of this article, you should also check out the video review as BarBend’s Nick English does a deep dive on our top Nitric Oxide supplements in 2023.
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Best Nitric Oxide Supplement Overall
We chose this as our top pick because it has all the right ingredients in the right doses. On top of that, the labeling is very clear, and the ingredients are high quality.
Huge Supplements Magnify N.O. Booster
Huge Supplements Magnify contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, the latter of which can help you absorb all these nitric-oxide boosting ingredients. All of these are clinical dosages for a nitric oxide supplement, and this supplement can be most effective if you take it 20 to 30 minutes before your workout.
Huge Supplements Magnify
Each six-capsule serving of this product contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, which can help with absorption. It's best to take Magnify 20 to 30 minutes before your workout.
Huge Supplements Magnify can even be stacked with their pre-workout Wrecked (or another similar pre-workout) for even better blood flow, and skin-splitting pumps. Each serving is six capsules, which may be a lot for some, but we like this because it allows us to easily vary how much we take each workout.
Who Should Buy Huge Supplements Magnify N.O. Booster
Athletes who want a nitric oxide supplement with a variety of ingredients that may help produce nitric oxide in the body will appreciate the ingredients list on this supplement.
Anyone who’s concerned with digestion. This product’s Bioperine can help with absorption.
People who like taking their nitric oxide supplement in capsule form rather than drinking it, and potentially feeling bloated.
Who Shouldn’t Buy Huge Supplements Magnify N.O. Booster
Pill-averse folks who may prefer a powder supplement can find alternatives on this list.
Vegans who are looking to avoid gelatin in their capsules will want to look elsewhere.
Buyers on a budget may be better off hunting for a more cost effective option.
With solid dosages of multiple ingredients that may help with nitric oxide production, this pick is ideal for those who may be willing to pay a little more for the variety of top notch ingredients.
[Related: The Best Types Of Supplements For Performance, Weight Loss, and Health]
Best Nitric Oxide Supplement (Runner Up)
While this product didn’t quite make the top of our list, it was a close second for its variety of ingredients that can potentially produce nitric oxide, clear labeling, and solid dosages.
Transparent Labs Nitric Oxide
This nitric oxide supplement is straight to the point with little pomp and pizzazz. Its heavy hitters are a hearty dose of 2,250mg of NO3-T®, which is a combination of arginine and betaine nitrate (1,250mg of arginine nitrate and 1,000mg of betaine nitrate). By combining the two together, the production of nitric oxide may be more stable and last longer through your workout. (4) Another included ingredient, which can potentially help manage oxidative stress, as well as encourage healthy blood flow, is l-glutathione dosed at 250mg — which is a solid amount. (5)
Transparent Labs Nitric Oxide
Pump up your lifting sessions and get your blood flowing with Transparent Labs Nitric Oxide. It features a potent blend of arginine nitrate and betaine nitrate called NO3-T® dosed at 2,250mg. Each four-capsule serving also contains antioxidants and ingredients to aid in absorption to extract the most out of each serving.
Pine bark extract and vitamin C (both dosed at 200mg) help to round out the antioxidants. Vitamin C doubles its usefulness by also potentially helping to aid in the absorption of NO3-T®. You’ll find AstraGin™ dosed at 50mg, which can potentially help you absorb everything.
The serving size on this product is four capsules, which makes it easy to regulate the amount you’re taking, but if you’re taking full servings, that may be a lot of pills to swallow. Each 30-serving container will cost you about $44.99 (or $38.24 if you subscribe to regular shipments). That works out to around $1.50 per serving for the one-time buy (or $1.27 per serving for the subscription).
Who Should Buy Transparent Labs Nitric Oxide
People who want a smooth and steady blood flow booster will appreciate the NO3-T formula, which can work to help make sure nitric oxide production is more stable and lasts longer. (4)
Anyone who is looking to extract the most they can from each serving of their N.O. booster. This product features ingredients, like AstraGin™ and vitamin C, that can help with absorption.
Someone who wants a straightforward nitric oxide booster. You won’t find any fillers or unnecessary ingredients here. Transparent Labs Nitric Oxide is free of artificial sweeteners, coloring, and preservatives.
Who Shouldn’t Buy Transparent Labs Nitric Oxide
Someone who prefers to take their N.O. supplements in powder form as this only comes in pill form.
Buyers who don’t like taking a bunch of pills may be overwhelmed by the four-capsule serving here. Some N.O. boosters pack their ingredients into one or two pills.
Athletes who want a more performance-oriented nitric oxide supplement with a wider range of ingredients, like stimulants or other common pre-workout-esque inclusions.
Transparent Labs Nitric Oxide is about as to-the-point as an N.O. booster can be. The nice thing about this product is that it can be stacked with other pre-workout products for even more potent potential effects. It can also be taken on its own to help promote blood flow at any time despite being geared toward workout enhancement.
Best Nitric Oxide Supplement For Pumps and Vascularity
If you’re pumping hard and looking for the vascular signs that your body fat may also be decreasing, nitric oxide may be able to help widen those veins and push them to the skin’s surface.
Transparent Labs Nitric Oxide
If you’ve ever experienced a solid pump, chances are you want to experience it again. Transparent Labs Nitric Oxide is a four-capsule dose of potent NO boosters like 1,250mg of arginine nitrate and 1,000mg of betaine nitrate, which combine together to form NO3-T®. The chemical composition of NO3-T® is said to help enhance the duration and stability of nitric oxide production. In other words, it might help to make your pump longer. (4) You’ll also receive antioxidants and potential absorption aids in the form of 250mg of L-glutathione, 200mg of pine bark extract, and 200mg of vitamin C. L-glutathione may also help with vascular support — those veins aren’t just for show. Additionally, the 50mg of AstraGin™ can potentially enhance gastrointestinal permeability. (7)
Transparent Labs Nitric Oxide
Pump up your lifting sessions and get your blood flowing with Transparent Labs Nitric Oxide. It features a potent blend of arginine nitrate and betaine nitrate called NO3-T® dosed at 2,250mg. Each four-capsule serving also contains antioxidants and ingredients to aid in absorption to extract the most out of each serving.
It’s worth noting that the recommended serving size here is four capsules, which some folks may find a bit daunting, especially if you’re already taking a bunch of other pill-based supplements. If you’re still on board and want to take the plunge for some skin-splitting pumps, then you can expect to pay around $44.99 per 30-serving capsule with a one-time purchase and $38.24 with a subscription. The per-serving price works out to about $1.50 or $1.27 for one-time purchases and subscriptions, respectively.
Who Should Buy Transparent Labs Nitric Oxide
Anyone looking for a great pump and vascular support, as the ingredients (like arginine and betaine) in this product are meant to work together while being well-dosed.
Folks who want additional ingredients included in their supplement to potentially help with absorption, such as AstraGin™. You’ll find that in the formula here.
Someone who wants a versatile nitric oxide supplement that they can take on its own or pair with a pre-workout.
Who Shouldn’t Buy Transparent Labs Nitric Oxide
People who aren’t keen on taking a lot of capsules — you have to take four of these to get the full serving size.
Anybody who prefers to take their NO products in powder form instead of pills. These only come in pill form.
Those who want more traditional pre-workout ingredients with their nitric oxide, such as creatine, glycerol, stimulants, or beta-alanine.
Transparent Labs Nitric Oxide has solid doses of each ingredient and can be paired with a pre-workout for some incredible pumps and vascularity. Taken by itself, this product can still help to promote solid pumps and won’t interfere with sleep if you work out later at night since there aren’t any stimulants here. NO supplements have the potential to improve blood flow and open up your blood vessels — Transparent Labs designed this product to achieve both.
Best Nitric Oxide Supplement For Citrulline
Citrulline is a non-essential amino acid that doesn’t play a role in building protein. Rather, it’s necessary for helping your body rid itself of harmful toxins. In regards to performance, this is the ingredient that can help widen the blood vessels to improve blood flow. (6)
Huge Supplements Pump Serum
Though technically a pre-workout, this stimulant-free product is our top pick for Citrulline because it contains 8,000mg of l-citrulline, which is higher than almost any other product we’ve seen. The high levels of citrulline combined with other patented ingredients, like GlyerPump™ — a form of glycerol powder that can help aid in hydration and nutrient absorption — makes this product a potent nitric oxide supplement. This supp also has 3,000mg of betaine to potentially help boost nitric oxide.
Huge Supplements Pump Serum
This pre-workout contains 8,000mg of l-citrulline. This high level of citrulline combined with other patented ingredients, like GlyerPump, make this product a potent nitric oxide supplement.
You’ll also find Bioperine, another ingredient that is included to potentially help with absorption, ensuring you get the most out of each scoop of Pump Serum. Huge Supplements made four great flavors to choose from as well — Strawberry Mojito, Jungle Juice, Cherry Berry, and Island Dream. Mix a scoop of this in eight to 12 ounces of water about 30 minutes before hitting the gym, and let the 17 clinically dosed ingredients do their thing.
Who Should Buy Huge Supplements Pump Serum
Athletes who want a stimulant-free pre-workout that is heavy on the citrulline to potentially help with blood flow.
Those who are concerned with absorption — the Bioperine and GlyerPump™ in this product are designed to maximize absorption.
Athletes who prefer a powder nitric oxide supplement to a pill nitric oxide supplement. You should mix this powder with eight to twelve ounces of water.
Who Shouldn’t Buy Huge Supplements Pump Serum
If you want a product with just citrulline, this is not it — while this product does contain 8g of citrulline, it also contains other nitric oxide-boosting supplements.
Buyers on a budget can find a less expensive nitric oxide product to purchase.
If you’re looking for a nitric oxide product that you can take whenever you like or multiple times per day, you should look elsewhere.
L-citrulline is known to increase blood flow, which is why many athletes take it to enhance their pumps. It is also linked to a boost in nitric oxide, and a widening of blood vessels, so this is a great addition to your supplement regimen for that purpose — especially for those who already have an interest in taking a citrulline supplement. (6)
Best Natural Nitric Oxide Supplement Blend
While some people may be looking for a dedicated citrulline supplement or beet juice to boost their nitric oxide production. Nitric oxide blends include a variety of ingredients that boast these potential effects, along with other helpful ingredients.
KOS Organic Beet Root Powder
KOS kept this product as simple as possible with only one ingredient — USDA organic beet root powder. Each scoop provides 4,000mg of beet root powder to potentially aid in blood flow, pump, and recovery. The beets used to make this product are carefully selected to be organic, non-GMO, and made in a good manufacturing practices facility.
KOS Organic Beet Root Powder
If you like short and easy to read ingredients lists you’ll love this organic product from KOS. It only contains one ingredients which is organic beet root powder. Each scoop contains 4,000mg of the stuff so you can get your beet powder in with no frills.
Thanks to the beet root itself, each scoop of this powder contains about 15 calories from four grams of carbs with no fat and no protein. You can snag a 90-serving container of this straightforward beet supplement for around $29.99 or approximately $0.33 per serving — a great price.
Who Should Buy KOS Organic Beet Root Powder
Those looking for an all-natural and organic beet root powder. That’s exactly what this is.
Folks who want an unflavored formula that they can mix into other flavored products or beverages.
Anyone who’s looking for a basic supplement that is only beet root powder without any extras.
Who Shouldn’t Buy KOS Organic Beet Root Powder
People who value a combination of ingredients can find a longer ingredient list out there.
Anyone who wants a flavored beet root supplement that they can drink by itself will want to check out other options.
Those who don’t care about buying a natural nitric oxide supplement may find other options’ formulas more appealing.
Not only is this beet root powder from KOS very well priced at around $0.33 per serving, it’s all-natural and organic with no unnecessary extras. The only ingredient is organic beet root powder with no frills (or even flavorings).
[Related: Could Baking Soda Be The Best Workout Supplement You’ve Never Tried?]
Best Nitric Oxide Pre-Workout Supplement
Some people like their nitric oxide supplement with a bit more of a kick. Often this comes in the form of caffeine and other stimulants. Huge Supplements has you covered if that’s the case, as their pre-workout features nitric oxide support prominently, as well as an additional dose of 350mg of caffeine.
Huge Supplements Wrecked
Similar to other nitric oxide supplements that can be used as a pre-workout, this pre-workout can be used as a nitric oxide supplement. It features a heavy-hitting dose of l-citrulline and betaine with 8,000mg and 3,000mg, respectively, along with 350mg of total caffeine. This pre-workout contains 17 clinically dosed ingredients meant to take your workout intensity to the next level, and give skin-tearing muscle pumps.
Huge Supplements Wrecked
This product packs 17 ingredients at high doses, including 8,000mg of citrulline, 3,500mg of beta alanine, 250mg of caffeine, and 3,000mg of betaine anhydrous. Plus, you’ll find 1,500mg of tyrosine and 197mg of Himalayan pink sea salt, as well.
The inclusion of Bioperine, a black pepper extract, is meant to help with absorption, so you can make use of all the great ingredients in this supplement. It comes in four awesome flavors — Bomb Popsicle, Peach Rings, Rainbow Burst, and Raspberry Mojito — with 20 servings per container.
Who Should Buy Huge Supplements Wrecked
Athletes who want to get all the benefits of a high-quality nitric oxide supplement, but need a bit of energy too from the 350mg of total caffeine in this product.
Anyone who is using a nitric oxide supplement as a pre-workout rather than just for vascular support. This product is the full pre-workout package.
People who enjoy long cardio sessions — the 8g of l-citrulline and 3,500mg of beta-alanine can help with endurance and stamina.
Who Shouldn’t Buy Huge Supplements Wrecked
Someone who wants something without caffeine — this has 350mg per serving.
Anyone who works out later in the evening. The stimulants in this may interfere with sleep if taken later on in the day.
Someone who is looking strictly for a nitric oxide supplement, not a full on pre-workout.
With a large dose of l-citrulline combined with other ingredients designed to support vascular health and blood flow, Huge Supplements Wrecked is no joke. Give this pre-workout a try if you’re looking to get your blood pumping.
[Related: Study: Fruits And Vegetables May Help Switch Off Genes Responsible For Obesity]
Best Nitric Oxide Beet Root Supplement
Since beets are rich in nitrate (which your body can turn into nitric oxide), many people turn to beet root for nitric oxide supplementation. This product has a solid dose of beet root for this purpose.
KOS Beet Root Powder
If you’re looking for a beet root supplement to potentially aid in nitric oxide production, then we think you’ll like this product from KOS because it features just one ingredient. Each scoop provides 4,000mg of pure beet root powder and nothing else — no added sugars, no flavorings, and no extras. We should note that this also provides 15 calories from four carbs per serving.
KOS Organic Beet Root Powder
If you like short and easy to read ingredients lists you’ll love this organic product from KOS. It only contains one ingredients which is organic beet root powder. Each scoop contains 4,000mg of the stuff so you can get your beet powder in with no frills.
This likely isn’t the best powder to drink on its own as there is no flavoring, but it mixes well into water with other supplements or with other flavored beverages. KOS sells this powder in a 90-serving container for around $29.99, which works out to about $0.33 per serving — making this rather conservatively priced.
Who Should Buy KOS Beet Root Powder
Anyone who prefers to mix their beet root supplement into water will like that this product mixes easily with eight ounces of water or can be mixed into other supplements.
Those who want a straightforward beet root product will appreciate that beet powder is the only ingredient in this product.
Customers who are on a budget. This is priced well so that each container can go a long way.
Who Shouldn’t Buy KOS Beet Root Powder
Anyone who wants a beet root supplement that also contains other nitric oxide supplements in addition to the beet root.
Buyers who want a flavored beet root supplement or one that they can easily drink on its own.
Folks who don’t want to have to drink their nitric oxide supplement and would rather take a pill.
Overall, this is a solid option for those who want a product that simply contains beet root as that is the only ingredient in this powder. It’s also easy on the wallet and all natural, which many people appreciate.
Best Nitric Oxide Supplement Pill
Some people may prefer to get their nitric oxide supplements in powder form or from beet juice, but pills are often the most convenient way to ingest this type of supplement. They can make taking different amounts easier, as you can just take fewer pills rather than measuring out partial scoops. Huge Supplements Magnify N.O. Booster has you covered if you fall into this category.
Huge Supplements Magnify N.O. Booster
There is no question, pills are just easier to transport and take. No mixing is required, and you won’t make a mess in the gym locker room trying to scoop powder into a water bottle when you inevitably forget your shaker bottle. Huge Supplements Magnify N.O. Booster is one of our favorite N.O. supplements on the market right now, and for good reason. Each six capsule serving contains a potent amount of l-arginine, beet root extract, and l-citrulline, among other ingredients.The capsules are made from gelatin, an animal product, so vegans may want to look elsewhere on this list for an N.O. booster.
Huge Supplements Magnify
Each six-capsule serving of this product contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, which can help with absorption. It's best to take Magnify 20 to 30 minutes before your workout.
The inclusion of Bioperine can also help to ensure that you absorb all that you can of the ingredients for the best results. You can rest assured that you’re getting a high quality product too since this supplement is made in an FDA approved facility, and is good manufacturing practices certified. Just take the six capsule dose about 20 or 30 minutes before your workout, and you should be ready to crush it.
Who Should Buy Huge Supplements Magnify N.O. Booster
Anyone who travels a lot and wants a convenient nitric oxide supplement that they can take on the go with no fuss and no mess.
Anyone who wants a dose of bioperine in their supplement to potentially help with absorption.
Someone who wants a N.O. booster that is stim-free — this is just blood flow support with no stimulants.
Who Shouldn’t Buy Huge Supplements Magnify N.O. Booster
Someone who is looking for more of a kick with their N.O. booster may opt for something with caffeine in it.
Those with a black pepper allergy — this product does contain bioperine.
Athletes who have trouble taking pills or don’t want to take multiple pills — this is a six capsule serving size.
Vegans may want to look for another option — the capsules here are made with gelatin.
This product contains potent nitric oxide support in a six capsule dose, and is super convenient to throw in your gym bag or cabinet, taking up minimal space.
When Should I Take Nitric Oxide Supplements?
Though there isn’t really a set time you should take nitric oxide — as your body needs nitric oxide to promote immune and heart health as well — for exercise purposes, it is best to consume it prior to a workout. Since nitric oxide can potentially widen blood vessels and increase blood flow, you’ll want to take it right before exercise (approximately 20 to 30 minutes before) for optimal pumps. (8)
It’s worth noting that if you are taking a nitric oxide supplement daily, it’s best to get it from a natural source like beetroot. While these supplements aren’t inherently dangerous, if you can get your nitric oxide from a more natural source, that’s always going to be a healthier alternative overall. (9)
Benefits of Nitric Oxide
There are several benefits to adding a nitric oxide supplement to your regimen. Most notable is its potential to be a vasodilator. This means that nitric oxide has the ability to widen blood vessels, which can allow for better blood flow. This may be noticeable by gymgoers as the feeling of achieving a “pump”. Nitric oxide also may promote immune and heart health (the heart is what allows our blood to pump).
It may also play a role in improving high-intensity training, as well as aerobic exercise. (2)(3) One study suggested that supplementing with nitric oxide-rich beetroot led to a 15 percent increase in working capacity before hitting fatigue and exhaustion. (3) This may be because vasodilation can help with better circulation and heartbeat regulation, or because N.O.’s potential to enhance oxygen and nutrient delivery to the muscles may delay that feeling of fatigue and allow you to work out for longer. (10)
How We Chose The Best Nitric Oxide Products
There are a host of nitric oxide supplements available, many of which can make outlandish claims about their effectiveness. Here’s how we selected the best nitric oxide supplements that can actually be effective.
L-arginine vs. L-citrulline
Two of the most common ingredients featured in N.O. boosters are the amino acids arginine and citrulline. Both are believed to play a role in helping our cells create more nitric oxide (N.O.), which can help generate a “pump” in the gym. The effectiveness of these amino acids is not entirely known, as more research is needed. However, there is some evidence to suggest that citrulline may be a more effective N.O. booster than arginine. We have included picks that contain both on this list, so you’ll have an option no matter your preference.
Beetroot
Beetroot is also used in many N.O. supplements because it has a high content of dietary nitrate, which has been shown to increase blood levels of nitrate, nitrite, and biologically active N.O. According to a study in Cureus, it has also been “observed to enhance athletic performance in healthy individuals.”
Image From ShutterStock/Anna_Pustynnikova
However, benefits may depend on individual aerobic fitness levels. “Dietary nitrate supplementation appears to have a favorable effect on training performance in some patient populations.” (11) We have included options both with and without beetroot on this list, so if you prefer a nitric oxide supplement in a more natural form, beetroot is an option for you.
Dosage
We skewed our picks toward more well-rounded dosages of multiple amino acids. While these doses won’t necessarily work for everyone, they tend to be the most effective doses for the general population. It’s wise to consult with a medical professional before starting on any dosage of a N.O. supplement. Be sure to pay special attention to how much of each amino acid or natural ingredient is listed on each label, not just for safety reasons, but also to ensure that the dosage of your target amino acid aligns with what is supplied in the product.
[Related: 10 Kinds Of Creatine And What They All Mean]
Ingredients
When shopping for any supplement, we took a close look at all the ingredients. We know some brands incorporate unnecessary or superfluous ingredients to beef up their recipes. There can be some benefits to that — an example is the use of coffee (read: caffeine) in order to increase energy levels temporarily. If you see any of these types of ingredients on this list, rest assured that they serve a purpose in their respective N.O. supplements — we did not include any products with unnecessary ingredients or additives here.
L-Citrulline vs. Citrulline Malate
Not knowing the difference between these two amino acids is not uncommon. Fortunately, they are different enough that they must be listed differently, but for anyone looking to take citrulline, either can get the job done.
The actual difference between l-citrulline and citrulline is that the former is free-form while the latter combines citrulline and malic acid. Malic acid is a natural supplement found in fruits like apples that helps to promote the creation of energy for your cells. As a citrulline supplement, both function the same.
[Related: 7 Pre-Workout Ingredients You Can Take For A Better Pump]
How Much Does Nitric Oxide Cost?
As far as supplements go, nitric oxide supplements are generally inexpensive. When calculating cost, it’s better to look at the cost per serving, rather than the overall cost of the container. To do this, you’ll need to consider both the number of servings you’re getting and the overall cost of the product.
Best Nitric Oxide Supplement Overall
Huge Supplements Magnify N.O. Booster
$39.95
$1.19 per serving
Best Nitric Oxide Supplement (Runner Up)
Transparent Labs Nitric Oxide
$44.99
$1.50 per serving
Best Nitric Oxide Supplement for Pump and Vascularity
Transparent Labs Nitric Oxide
$44.99
$1.50 per serving
Best Nitric Oxide for Citrulline
Huge Supplements Beet Root Powder
$54.95
$1.37 per serving
Best Natural Nitric Oxide Supplement Blend
KOS Organic Beet Root Powder
$29.99
$0.33 per serving
Best Nitric Oxide Pre-Workout Supplement
Huge Supplements Wrecked Pre-Workout
$49.95
$1.25 per serving
Best Nitric Oxide Beet Root Supplement
KOS Organic Beet Root Powder
$29.99
$0.33 per serving
Best Nitric Oxide Pill
Huge Supplements Magnify N.O. Booster
$39.99
$1.99 per serving
The cost of nitric oxide supplements typically ranges anywhere from $1.00 to $2.00 per serving depending on the product and its ingredients. There are some on this list that reach a higher point at around $2.50, but we included a variety of options to make sure each person can find something that fits their needs. The average price per serving is $1.83, so none of these prices are outrageous, but you’ll find a nice in-between price with several of these picks.
A pre-workout that contains nitric oxide-boosting ingredients is going to be more expensive because it contains more amino acids, vitamins, and minerals than basic nitric oxide supplements. And on the other hand, if you’re getting a simple citrulline supplement that’s just one single ingredient, you’re going to pay far less.
What To Consider Before Buying Nitric Oxide
Nitric oxide supplements come in a variety of forms and contain an equal variety of ingredients. Before choosing your perfect pick, make sure you know exactly what you want to get out of your supplement.
Pill vs. Powder
Nitric Oxide supplements come in both pill and powder form. Neither is totally inconvenient, but pills are definitely the most convenient of the two, as you can easily throw a bottle in your bag, head out the door, and take a couple any time that works for you.
Image from Shutterstock / Lebedev Roman Olegovich
However, pills tend to digest slower than powder since your body has to break through the capsule. Therefore, if you’re looking for the nitric oxide supplement to kick in right away, a powder that you mix with liquid to consume directly is a better choice. Neither is more effective than the other overall — it’s all about your personal preferences and priorities.
Powder formulas also might lend enjoyability as a factor. If you enjoy tasty beverages, or you want to up your hydration, a powder formula can be a great way to do that. It’s also possible to find an unflavored powder to stack with your other supplements, which can help ensure you’re taking the supps you want with the most ease.
Ingredients
When determining which N.O. supplement to choose from, it’s wise to get a sense of how much of each amino acid or any other ingredient combinations are used. Each choice on our list has a different dosage for each amino acid. Some have very slim ingredient lists while others are rather extensive, both of which offer particular benefits. Before you choose which nitric oxide to buy, make sure you know what ingredients and combinations of ingredients you want in your supplement, so you are not overpaying for a more robust ingredient list than you need.
Speak to a Medical Professional
N.O. supplements are not for everyone. Consult a medical professional before beginning to use these. If you decide to use an N.O. supplement, start slow. Different compounds can have different effects for some folks; instead of going straight for a full dose, it may be wise to start with a half dose and see how you feel. A medical professional can help you make the right decision for your body.
Final Word
Nitric oxide supplements offer some variety compared to other supplements on the market. Since these supplements don’t contain nitric oxide — only ingredients that boost nitric oxide production — the ingredients tend to vary from product to product. You’ll find some that contain l-arginine, some have l-citrulline, some boast beetroot, and others provide a combination of these (and other ingredients).
With the enticing prospect of potentially better blood flow, gnarlier pumps, and improved performance in high-intensity exercise, nitric oxide is a well-desired aid for your workouts. Deciding which nitric oxide-boosting ingredients suit your regimen best will be your greatest challenge when adding supps like these to your stack. But our hope is that you allow this list to be your guide to the top N.O. product for your fitness and nutrition goals.
FAQs
What is the best nitric oxide supplement?Although there are many great supplements on the market that may enhance nitric oxide production, we believe that Huge Supplements Magnify N.O. booster wins the top spot as the best nitric oxide supp. It contains three potentially N.O. boosting ingredients, as well as Bioperine, which may make all of these ingredients easier to absorb.
How much do nitric oxide supplements cost?Since there is a wide variety of N.O. supplements on the market, the prices will vary in the same way. We found the average price point to be $1.83 per serving, but you can find cheaper and more expensive alternatives. This list ranges between about $1.50 and $2.50 per serving.
What foods are high in nitric oxide?While no foods contain nitric oxide, some foods contain nitrates that may help boost nitric oxide levels. Beets are among the most well-researched foods that may lead to higher levels of nitric oxide.
References
Moncada S, Palmer RM, Higgs EA. The discovery of nitric oxide as the endogenous nitrovasodilator. Hypertension (Dallas, Tex?: 1979). 1988;12(4):365-372.?
Wylie LJ, Mohr M, Krustrup P, et al. Dietary nitrate supplementation improves team sport-specific intense intermittent exercise performance. European journal of applied physiology. 2013;113(7):1673-1684.
Lansley KE, Winyard PG, Fulford J, et al. Dietary nitrate supplementation reduces the O2 cost of walking and running: a placebo-controlled study. Journal of applied physiology (Bethesda, Md?: 1985). 2011;110(3):591-600.
Münzel, T., Daiber, A., & Gori, T. (2011). Nitrate therapy: new aspects concerning molecular action and tolerance. Circulation, 123(19), 2132–2144. https://doi.org/10.1161/CIRCULATIONAHA.110.981407
Schmitt, B., Vicenzi, M., Garrel, C., & Denis, F. M. (2015). Effects of N-acetylcysteine, oral glutathione (GSH) and a novel sublingual form of GSH on oxidative stress markers: A comparative crossover study. Redox biology, 6, 198–205. https://doi.org/10.1016/j.redox.2015.07.012
Coles, K. E. (2007). Investigation into the antioxidant capacity of l-arginine and l-citrulline in relation to their vascular protective properties. Cardiff University (United Kingdom).
Wang, Q. Z., Chen, X. P., Huang, J. P., & Jiang, X. W. (2015). Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine, 35(11), 1307–1312.
Mosher SL, Sparks SA, Williams EL, Bentley DJ, Mc Naughton LR. Ingestion of a Nitric Oxide Enhancing Supplement Improves Resistance Exercise Performance. J Strength Cond Res. 2016 Dec;30(12):3520-3524. doi: 10.1519/JSC.0000000000001437. PMID: 27050244.
Bryan NS. Functional Nitric Oxide Nutrition to Combat Cardiovascular Disease. Curr Atheroscler Rep. 2018 Mar 17;20(5):21. doi: 10.1007/s11883-018-0723-0. PMID: 29550903.
Bescós R, Sureda A, Tur JA, Pons A. The effect of nitric-oxide-related supplements on human performance. Sports Med. 2012 Feb 1;42(2):99-117. doi: 10.2165/11596860-000000000-00000. PMID: 22260513.
Hanna Olsson, et al. Physiological Effects of Beetroot in Athletes and Patients. (2019). Cureus. doi: 10.7759/cureus.6355.
Produced by our body’s cells, nitric oxide (N.O.) plays a big role in blood vessel health. N.O. may help naturally widen blood vessels to increase blood flow and simultaneously decrease blood pressure. It’s important to understand that supplements that claim to boost N.O. don’t actually contain N.O. — rather, they are made of other compounds that amp up the body’s production of N.O., most commonly l-arginine and l-citrulline. Many brands use ingredients like beetroot in their complexes — a popular addition in pre-workouts due to its potential to act as a vasodilator. (1)
While more research is needed to determine the efficacy of increased N.O. levels on athletic performance, there is some evidence that suggests it may aid in high intensity interval training (HIIT) and prolonged aerobic activity. (2)(3) Additionally, some athletes use it because they feel it gives them a bigger “pump” and vascularity while working out. For those who are eager to give N.O. a try, we rounded up and tested some of the best nitric oxide supplements on the market based on ingredients, dosage amounts, and the latest research.
The Best Nitric Oxide Supplements
Editor’s note: The content on BarBend is meant to be informative in nature, but it should not be taken as medical advice. The opinions and articles on this site are not intended for use as diagnosis, prevention, and/or treatment of health problems. It’s always a good idea to talk to your doctor before beginning a new fitness, nutritional, and/or supplement routine. Individual needs for vitamins and minerals will vary.
Best Nitric Oxide Supplements Video Review
While we still think you should read the rest of this article, you should also check out the video review as BarBend’s Nick English does a deep dive on our top Nitric Oxide supplements in 2023.
Best Nitric Oxide Supplement Overall
We chose this as our top pick because it has all the right ingredients in the right doses. On top of that, the labeling is very clear, and the ingredients are high quality.
Huge Supplements Magnify N.O. Booster
Huge Supplements Magnify contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, the latter of which can help you absorb all these nitric-oxide boosting ingredients. All of these are clinical dosages for a nitric oxide supplement, and this supplement can be most effective if you take it 20 to 30 minutes before your workout.
Huge Supplements Magnify
Each six-capsule serving of this product contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, which can help with absorption. It's best to take Magnify 20 to 30 minutes before your workout.
Huge Supplements Magnify can even be stacked with their pre-workout Wrecked (or another similar pre-workout) for even better blood flow, and skin-splitting pumps. Each serving is six capsules, which may be a lot for some, but we like this because it allows us to easily vary how much we take each workout.
Who Should Buy Huge Supplements Magnify N.O. Booster
- Athletes who want a nitric oxide supplement with a variety of ingredients that may help produce nitric oxide in the body will appreciate the ingredients list on this supplement.
- Anyone who’s concerned with digestion. This product’s Bioperine can help with absorption.
- People who like taking their nitric oxide supplement in capsule form rather than drinking it, and potentially feeling bloated.
- Pill-averse folks who may prefer a powder supplement can find alternatives on this list.
- Vegans who are looking to avoid gelatin in their capsules will want to look elsewhere.
- Buyers on a budget may be better off hunting for a more cost effective option.
[Related: The Best Types Of Supplements For Performance, Weight Loss, and Health]
Best Nitric Oxide Supplement (Runner Up)
While this product didn’t quite make the top of our list, it was a close second for its variety of ingredients that can potentially produce nitric oxide, clear labeling, and solid dosages.
Transparent Labs Nitric Oxide
This nitric oxide supplement is straight to the point with little pomp and pizzazz. Its heavy hitters are a hearty dose of 2,250mg of NO3-T®, which is a combination of arginine and betaine nitrate (1,250mg of arginine nitrate and 1,000mg of betaine nitrate). By combining the two together, the production of nitric oxide may be more stable and last longer through your workout. (4) Another included ingredient, which can potentially help manage oxidative stress, as well as encourage healthy blood flow, is l-glutathione dosed at 250mg — which is a solid amount. (5)
Transparent Labs Nitric Oxide
Pump up your lifting sessions and get your blood flowing with Transparent Labs Nitric Oxide. It features a potent blend of arginine nitrate and betaine nitrate called NO3-T® dosed at 2,250mg. Each four-capsule serving also contains antioxidants and ingredients to aid in absorption to extract the most out of each serving.
Pine bark extract and vitamin C (both dosed at 200mg) help to round out the antioxidants. Vitamin C doubles its usefulness by also potentially helping to aid in the absorption of NO3-T®. You’ll find AstraGin™ dosed at 50mg, which can potentially help you absorb everything.
The serving size on this product is four capsules, which makes it easy to regulate the amount you’re taking, but if you’re taking full servings, that may be a lot of pills to swallow. Each 30-serving container will cost you about $44.99 (or $38.24 if you subscribe to regular shipments). That works out to around $1.50 per serving for the one-time buy (or $1.27 per serving for the subscription).
Who Should Buy Transparent Labs Nitric Oxide
- People who want a smooth and steady blood flow booster will appreciate the NO3-T formula, which can work to help make sure nitric oxide production is more stable and lasts longer. (4)
- Anyone who is looking to extract the most they can from each serving of their N.O. booster. This product features ingredients, like AstraGin™ and vitamin C, that can help with absorption.
- Someone who wants a straightforward nitric oxide booster. You won’t find any fillers or unnecessary ingredients here. Transparent Labs Nitric Oxide is free of artificial sweeteners, coloring, and preservatives.
- Someone who prefers to take their N.O. supplements in powder form as this only comes in pill form.
- Buyers who don’t like taking a bunch of pills may be overwhelmed by the four-capsule serving here. Some N.O. boosters pack their ingredients into one or two pills.
- Athletes who want a more performance-oriented nitric oxide supplement with a wider range of ingredients, like stimulants or other common pre-workout-esque inclusions.
Best Nitric Oxide Supplement For Pumps and Vascularity
If you’re pumping hard and looking for the vascular signs that your body fat may also be decreasing, nitric oxide may be able to help widen those veins and push them to the skin’s surface.
Transparent Labs Nitric Oxide
If you’ve ever experienced a solid pump, chances are you want to experience it again. Transparent Labs Nitric Oxide is a four-capsule dose of potent NO boosters like 1,250mg of arginine nitrate and 1,000mg of betaine nitrate, which combine together to form NO3-T®. The chemical composition of NO3-T® is said to help enhance the duration and stability of nitric oxide production. In other words, it might help to make your pump longer. (4) You’ll also receive antioxidants and potential absorption aids in the form of 250mg of L-glutathione, 200mg of pine bark extract, and 200mg of vitamin C. L-glutathione may also help with vascular support — those veins aren’t just for show. Additionally, the 50mg of AstraGin™ can potentially enhance gastrointestinal permeability. (7)
Transparent Labs Nitric Oxide
Pump up your lifting sessions and get your blood flowing with Transparent Labs Nitric Oxide. It features a potent blend of arginine nitrate and betaine nitrate called NO3-T® dosed at 2,250mg. Each four-capsule serving also contains antioxidants and ingredients to aid in absorption to extract the most out of each serving.
It’s worth noting that the recommended serving size here is four capsules, which some folks may find a bit daunting, especially if you’re already taking a bunch of other pill-based supplements. If you’re still on board and want to take the plunge for some skin-splitting pumps, then you can expect to pay around $44.99 per 30-serving capsule with a one-time purchase and $38.24 with a subscription. The per-serving price works out to about $1.50 or $1.27 for one-time purchases and subscriptions, respectively.
Who Should Buy Transparent Labs Nitric Oxide
- Anyone looking for a great pump and vascular support, as the ingredients (like arginine and betaine) in this product are meant to work together while being well-dosed.
- Folks who want additional ingredients included in their supplement to potentially help with absorption, such as AstraGin™. You’ll find that in the formula here.
- Someone who wants a versatile nitric oxide supplement that they can take on its own or pair with a pre-workout.
- People who aren’t keen on taking a lot of capsules — you have to take four of these to get the full serving size.
- Anybody who prefers to take their NO products in powder form instead of pills. These only come in pill form.
- Those who want more traditional pre-workout ingredients with their nitric oxide, such as creatine, glycerol, stimulants, or beta-alanine.
Best Nitric Oxide Supplement For Citrulline
Citrulline is a non-essential amino acid that doesn’t play a role in building protein. Rather, it’s necessary for helping your body rid itself of harmful toxins. In regards to performance, this is the ingredient that can help widen the blood vessels to improve blood flow. (6)
Huge Supplements Pump Serum
Though technically a pre-workout, this stimulant-free product is our top pick for Citrulline because it contains 8,000mg of l-citrulline, which is higher than almost any other product we’ve seen. The high levels of citrulline combined with other patented ingredients, like GlyerPump™ — a form of glycerol powder that can help aid in hydration and nutrient absorption — makes this product a potent nitric oxide supplement. This supp also has 3,000mg of betaine to potentially help boost nitric oxide.
Huge Supplements Pump Serum
This pre-workout contains 8,000mg of l-citrulline. This high level of citrulline combined with other patented ingredients, like GlyerPump, make this product a potent nitric oxide supplement.
You’ll also find Bioperine, another ingredient that is included to potentially help with absorption, ensuring you get the most out of each scoop of Pump Serum. Huge Supplements made four great flavors to choose from as well — Strawberry Mojito, Jungle Juice, Cherry Berry, and Island Dream. Mix a scoop of this in eight to 12 ounces of water about 30 minutes before hitting the gym, and let the 17 clinically dosed ingredients do their thing.
Who Should Buy Huge Supplements Pump Serum
- Athletes who want a stimulant-free pre-workout that is heavy on the citrulline to potentially help with blood flow.
- Those who are concerned with absorption — the Bioperine and GlyerPump™ in this product are designed to maximize absorption.
- Athletes who prefer a powder nitric oxide supplement to a pill nitric oxide supplement. You should mix this powder with eight to twelve ounces of water.
- If you want a product with just citrulline, this is not it — while this product does contain 8g of citrulline, it also contains other nitric oxide-boosting supplements.
- Buyers on a budget can find a less expensive nitric oxide product to purchase.
- If you’re looking for a nitric oxide product that you can take whenever you like or multiple times per day, you should look elsewhere.
Best Natural Nitric Oxide Supplement Blend
While some people may be looking for a dedicated citrulline supplement or beet juice to boost their nitric oxide production. Nitric oxide blends include a variety of ingredients that boast these potential effects, along with other helpful ingredients.
KOS Organic Beet Root Powder
KOS kept this product as simple as possible with only one ingredient — USDA organic beet root powder. Each scoop provides 4,000mg of beet root powder to potentially aid in blood flow, pump, and recovery. The beets used to make this product are carefully selected to be organic, non-GMO, and made in a good manufacturing practices facility.
KOS Organic Beet Root Powder
If you like short and easy to read ingredients lists you’ll love this organic product from KOS. It only contains one ingredients which is organic beet root powder. Each scoop contains 4,000mg of the stuff so you can get your beet powder in with no frills.
Thanks to the beet root itself, each scoop of this powder contains about 15 calories from four grams of carbs with no fat and no protein. You can snag a 90-serving container of this straightforward beet supplement for around $29.99 or approximately $0.33 per serving — a great price.
Who Should Buy KOS Organic Beet Root Powder
- Those looking for an all-natural and organic beet root powder. That’s exactly what this is.
- Folks who want an unflavored formula that they can mix into other flavored products or beverages.
- Anyone who’s looking for a basic supplement that is only beet root powder without any extras.
- People who value a combination of ingredients can find a longer ingredient list out there.
- Anyone who wants a flavored beet root supplement that they can drink by itself will want to check out other options.
- Those who don’t care about buying a natural nitric oxide supplement may find other options’ formulas more appealing.
[Related: Could Baking Soda Be The Best Workout Supplement You’ve Never Tried?]
Best Nitric Oxide Pre-Workout Supplement
Some people like their nitric oxide supplement with a bit more of a kick. Often this comes in the form of caffeine and other stimulants. Huge Supplements has you covered if that’s the case, as their pre-workout features nitric oxide support prominently, as well as an additional dose of 350mg of caffeine.
Huge Supplements Wrecked
Similar to other nitric oxide supplements that can be used as a pre-workout, this pre-workout can be used as a nitric oxide supplement. It features a heavy-hitting dose of l-citrulline and betaine with 8,000mg and 3,000mg, respectively, along with 350mg of total caffeine. This pre-workout contains 17 clinically dosed ingredients meant to take your workout intensity to the next level, and give skin-tearing muscle pumps.
Huge Supplements Wrecked
This product packs 17 ingredients at high doses, including 8,000mg of citrulline, 3,500mg of beta alanine, 250mg of caffeine, and 3,000mg of betaine anhydrous. Plus, you’ll find 1,500mg of tyrosine and 197mg of Himalayan pink sea salt, as well.
The inclusion of Bioperine, a black pepper extract, is meant to help with absorption, so you can make use of all the great ingredients in this supplement. It comes in four awesome flavors — Bomb Popsicle, Peach Rings, Rainbow Burst, and Raspberry Mojito — with 20 servings per container.
Who Should Buy Huge Supplements Wrecked
- Athletes who want to get all the benefits of a high-quality nitric oxide supplement, but need a bit of energy too from the 350mg of total caffeine in this product.
- Anyone who is using a nitric oxide supplement as a pre-workout rather than just for vascular support. This product is the full pre-workout package.
- People who enjoy long cardio sessions — the 8g of l-citrulline and 3,500mg of beta-alanine can help with endurance and stamina.
- Someone who wants something without caffeine — this has 350mg per serving.
- Anyone who works out later in the evening. The stimulants in this may interfere with sleep if taken later on in the day.
- Someone who is looking strictly for a nitric oxide supplement, not a full on pre-workout.
[Related: Study: Fruits And Vegetables May Help Switch Off Genes Responsible For Obesity]
Best Nitric Oxide Beet Root Supplement
Since beets are rich in nitrate (which your body can turn into nitric oxide), many people turn to beet root for nitric oxide supplementation. This product has a solid dose of beet root for this purpose.
KOS Beet Root Powder
If you’re looking for a beet root supplement to potentially aid in nitric oxide production, then we think you’ll like this product from KOS because it features just one ingredient. Each scoop provides 4,000mg of pure beet root powder and nothing else — no added sugars, no flavorings, and no extras. We should note that this also provides 15 calories from four carbs per serving.
KOS Organic Beet Root Powder
If you like short and easy to read ingredients lists you’ll love this organic product from KOS. It only contains one ingredients which is organic beet root powder. Each scoop contains 4,000mg of the stuff so you can get your beet powder in with no frills.
This likely isn’t the best powder to drink on its own as there is no flavoring, but it mixes well into water with other supplements or with other flavored beverages. KOS sells this powder in a 90-serving container for around $29.99, which works out to about $0.33 per serving — making this rather conservatively priced.
Who Should Buy KOS Beet Root Powder
- Anyone who prefers to mix their beet root supplement into water will like that this product mixes easily with eight ounces of water or can be mixed into other supplements.
- Those who want a straightforward beet root product will appreciate that beet powder is the only ingredient in this product.
- Customers who are on a budget. This is priced well so that each container can go a long way.
- Anyone who wants a beet root supplement that also contains other nitric oxide supplements in addition to the beet root.
- Buyers who want a flavored beet root supplement or one that they can easily drink on its own.
- Folks who don’t want to have to drink their nitric oxide supplement and would rather take a pill.
Best Nitric Oxide Supplement Pill
Some people may prefer to get their nitric oxide supplements in powder form or from beet juice, but pills are often the most convenient way to ingest this type of supplement. They can make taking different amounts easier, as you can just take fewer pills rather than measuring out partial scoops. Huge Supplements Magnify N.O. Booster has you covered if you fall into this category.
Huge Supplements Magnify N.O. Booster
There is no question, pills are just easier to transport and take. No mixing is required, and you won’t make a mess in the gym locker room trying to scoop powder into a water bottle when you inevitably forget your shaker bottle. Huge Supplements Magnify N.O. Booster is one of our favorite N.O. supplements on the market right now, and for good reason. Each six capsule serving contains a potent amount of l-arginine, beet root extract, and l-citrulline, among other ingredients.The capsules are made from gelatin, an animal product, so vegans may want to look elsewhere on this list for an N.O. booster.
Huge Supplements Magnify
Each six-capsule serving of this product contains 1,500mg of arginine, 1,000mg of beet root extract, 1,000mg of citrulline, and 10mg of Bioperine, which can help with absorption. It's best to take Magnify 20 to 30 minutes before your workout.
The inclusion of Bioperine can also help to ensure that you absorb all that you can of the ingredients for the best results. You can rest assured that you’re getting a high quality product too since this supplement is made in an FDA approved facility, and is good manufacturing practices certified. Just take the six capsule dose about 20 or 30 minutes before your workout, and you should be ready to crush it.
Who Should Buy Huge Supplements Magnify N.O. Booster
- Anyone who travels a lot and wants a convenient nitric oxide supplement that they can take on the go with no fuss and no mess.
- Anyone who wants a dose of bioperine in their supplement to potentially help with absorption.
- Someone who wants a N.O. booster that is stim-free — this is just blood flow support with no stimulants.
- Someone who is looking for more of a kick with their N.O. booster may opt for something with caffeine in it.
- Those with a black pepper allergy — this product does contain bioperine.
- Athletes who have trouble taking pills or don’t want to take multiple pills — this is a six capsule serving size.
- Vegans may want to look for another option — the capsules here are made with gelatin.
When Should I Take Nitric Oxide Supplements?
Though there isn’t really a set time you should take nitric oxide — as your body needs nitric oxide to promote immune and heart health as well — for exercise purposes, it is best to consume it prior to a workout. Since nitric oxide can potentially widen blood vessels and increase blood flow, you’ll want to take it right before exercise (approximately 20 to 30 minutes before) for optimal pumps. (8)
It’s worth noting that if you are taking a nitric oxide supplement daily, it’s best to get it from a natural source like beetroot. While these supplements aren’t inherently dangerous, if you can get your nitric oxide from a more natural source, that’s always going to be a healthier alternative overall. (9)
Benefits of Nitric Oxide
There are several benefits to adding a nitric oxide supplement to your regimen. Most notable is its potential to be a vasodilator. This means that nitric oxide has the ability to widen blood vessels, which can allow for better blood flow. This may be noticeable by gymgoers as the feeling of achieving a “pump”. Nitric oxide also may promote immune and heart health (the heart is what allows our blood to pump).
It may also play a role in improving high-intensity training, as well as aerobic exercise. (2)(3) One study suggested that supplementing with nitric oxide-rich beetroot led to a 15 percent increase in working capacity before hitting fatigue and exhaustion. (3) This may be because vasodilation can help with better circulation and heartbeat regulation, or because N.O.’s potential to enhance oxygen and nutrient delivery to the muscles may delay that feeling of fatigue and allow you to work out for longer. (10)
How We Chose The Best Nitric Oxide Products
There are a host of nitric oxide supplements available, many of which can make outlandish claims about their effectiveness. Here’s how we selected the best nitric oxide supplements that can...
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