Can't speak to prescribed versions, i've taken GHRP-2 and ModGRF together for a few months and honestly, it was hard to say if it did anything. I took as recommended (3x per day, fasted, am, post WO and pre-bed). I was on a cut at the time, and i kept most of my muscle and leaned up, but to pinpoint the peptides vs. diet vs. exercise - just hard to say. I can say it definitely didn't hurt anything!