I don't know much about gh other than you use IUs which I am not sure of either. I heard you shoot the stuff under the skin on you belly with an insulin needle but I don't know how much a IU is is it like 1/10 of a cc or what? Also how many IUs should I use for a beggining maintence like cycle? How much a month would it be(guestimate) and are the sides bad? Thanks I am getting older and I want to feel younger.