What Are Peptides Used For? Benefits, Uses, Side Effects & Natural Sources Xandro Lab 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 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 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 Effects of GHRP 2 and Hexarelin, Two Synthetic GH Releasing Peptides, on GH, Prolactin, ACTH and Cortisol Levels in Man. Comparison with the Effects of GHRH, TRH and hCRH ScienceDirect Plasma GH levels versus time in swine following i.v. administration of Download Scientific Diagram