the pamphlet in Igtropin give directions for usage of their product and recommends using insulin with your morning dose of Igf to increase the half life (not active life) of your igf, and then another injection by itself in the evening. THis is what ive read from the guys at GenSci, i dunno bro....and i was saying "half life", not active life.....so after 6 hours only "half" of the compound is active, and another 6 hours later half of that, and so on.....and for some reason the ppl at GenSci (and other knowlegeable ppl ive talked to) say insulin increases that half life, how it does it? i have no fuckin clue.....but enough very very very smart and expierenced ppl have told me this, so im kinda inclined to belive it., i wish i was able to dig up some proof on how it actually does, but havent found shit as of yet