From what ive read all the fat burning and muscle building effects of HGH are caused because it causes you to release more IGF-1. That being said i have also read many posts by a lot of supposed "experts" (one of them was a dude named RazorRipped) who said that IGF-1 looked great on paper but did little when used by itself without insulin or GH. So from what i can tell IGF-1 is cheap as hell by some research companies and if this stuff causes all the gains then why do people use regular growth hormone at all? Would it a better to just use AAS+IGF-1+ Insulin for the best gains and save some money in the process?