Peptides are a flood of amino acids. It passes through your pituitary and turns it into a natural growth hormone. I like ghrp2 and ghrp6 for the increase in apatite. Its kinda like the poor mans hgh. It has about the same effects as gh. I ran 1295 and ghrp2 100 micrograms of each three times a day.
Look in the forum under HGH topics there's a peptide breakdown in there some place.