Ive been on it two years, I do 21iu week....I never saw or "felt" anything, and read on many forums that it is something that helps over the long long haul, guys say they dont see or feel stuff for 6 months to a year...and those that do, I wonder if its placebo or wishful thinking...I love the stuff, and will be on it forever, but my benefits pay for it...otherwise I would just save up and do blasts with AAS, much cheaper, and you can "see" and "feel" the difference in a specific time frame...with GH I do not think so much, unless maybe you are hitting gigantic doses which will cost a lot....