Mean bioavailability of di erent peptidyl GH secretagogues following Download Scientific Diagram Ipamorelin is a potent growth hormone releasing peptide that has some potential advantages over some of the others. Although peptides seem to be doled out like aspirin, keep in mind that these are Ipamorelin is a potent growth hormone releasing peptide that has some potential advantages over some of the others. Although peptides seem to be doled out like aspirin, keep in mind that these are Performance Enhancing Hormone Doping in Sport Endotext NCBI Bookshelf Determination of growth hormone releasing peptides metabolites in human urine after nasal administration of GHRP1, GHRP2, GHRP6, Hexarelin, and Ipamorelin Semenistaya 2015 Drug Testing and Analysis Wiley Online Library