Figure 3 from Ipamorelin, the first selective growth hormone secretagogue. Semantic Scholar Current Insights in Prolactin Signaling and Ovulatory Function 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 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 The role of cortisol and prolactin in the pathogenesis and clinical expression of psychotic disorders ScienceDirect