Purity ~98% (RP-HPLC, SDS-PAGE). GH-releasing peptides (GHRPs) are synthetic peptides that like GHRH act directly on pituitary somatotrophs to stimulate GH release. GHRP-2, an investigational drug, is one of the most potent members of the GHRP family. It has been shown to be effective in adults via the oral and intranasal as well as the IV route of administration. Source: Growth Hormone Releasing Peptide-2, Synthetic