ive only used straight human grade american made hgh and can tell ya its devf over rated muwscle building wise. Its good though to help ya stay lean and not fat while doin a bulker. Wut i mean is i didnt hsave to watch my diet as much or be as satrict. But i can tell u and im doin this now u can get the full benefits of gh when u comine it with juice and insulin( onkly if ur experienced)