G8 is not like HGH. It is a sleep aid and mood elevator and quite potent at that. Visit Finaflex.com to learn more. I happen to have run a tub of this and have another on the way and IMO it is an awesome supplement, however the experience is different for everybody. Check out some reviews in the Finaflex sub forum as well. If you contact ScottyDoc or DreamWeaver they may be able to get you some samples.