Hey Cryptkeeper,
You can use either one but I would stick with cottenseed. Its more generic and easier to get. You can get cottenseed by clicking on "cottonseed" in your own message. Research-ology( may be misspelled) has great products and a great reputation.
Glad to see someone making a cornerstone brew like test enan. You know your gonna get results and virtually no injection problems.
Good luck man!

Buy the oil at the grocery store. Cotton seed is fine. I use grape seed oil, which is very popular. Walnut oil is good as long as you don't have an allergy to it.

thanks guys, i can get soy oil for 7 bucks for 30ml so thats why i asked, but ill prolly go with cottonseed, might even try the grapeseed too. im gonna make some boldenone also

thanks again

you dont need sterile oil. once its filtered its sterile. you can get oil for 20 bucks a gallon.

thanks pullin