L-Arginine / Nitric Oxide

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it will make you feel good and get a good pump but in reality it's not actually helping you build muscle... a lot of it is psychological and therefore you "feel like a god." Do whatever works for you but remember that FOOD and Protein is what is going to make you grow more than anything else, it's all marketing hype

NO XPLODE may not help you build muscle all by itself but I know I get an amazing pump from it, and after working ten hour days it gives me the energy I need to get to the gym and extra strength to lift heavier and more intense than usual so IMO I definetely recommend it but most importantly is proper diet.

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I disagree, I don't think any of these products make you stronger. If you "feel" stronger than keep at it but in my opinion these are all supplements that you can get through a good, clean diet and supplementing with protein, glutamine and plain old fashioned BCAA's.