Big Pharma Ingredients

What are the oils, solvents, ect that is used in human grade test e, prop, primo? Surely they dont use cottonseed oil?

DELATESTRYL Testosterone Enanthate 200mg/ml - Sesame oil with 5 mg chlorobutanol (chloral derivative) as a preservative. (It didn't state the amount of BA)

Nandrolone Decanoate 200 mg - Benzyl Alcohol 5% as solubilizer/preservative, in Sesame Oil

I don't have the time to search the internet, but sesame/arachis oil seems to be the most popular. I have heard of some using sterile cottonseed oil, peanut oil, and grape seed oil as well. I'm not too sure of how far spread their use are in actual pharmaceutical companies are, but I know of UG's that have used them. I've heard some conflicting reports about the safety of cottonseed oil for your health. Usually thinner oils are better to use as you can use smaller gauge needles for injection. Search around the internet for more info.

Yes Cottonseed oil is used. I’ve used gear which was prepared with it.
Most vegetable oils are fine as long as they are USP, BP etc grade.
(USP: United state Pharmacopoeia, BP: British Pharmacopoeia)
The problem with the use of sesame seed oil and peanut oil is that many people have allergy; too them. I believe this is why cotton seed, grape seed oil and others are used.
The essential is that they are USP oils. Same goes for your solvents, preservatives and other agents, (Benzyl Benzoate, Benzyl Alcohol, Polysorbate 80 Polyethylene glycols)
They should be USP

Yes, I was surprised so many used sesame oil. I know a few people myself who are allergic to sesame seeds so they would probably have a severe reaction to both of those "human grade" products.