Not just all pros but all top amatures use gh and insulin. All of the top woman do also. It is pretty universal now. You can get better gains from gh, insulin and test then mixing a bunch of differebt steroids in one cycle. The gh is worth the money. Insulin isn't as dangerous as it is made out to be. I've used up to 10 iu's 2X a day and never had a problem. I have friends who use over 20iu's at a time.