Frontiers The Growth Hormone Receptor: Mechanism of Receptor Activation, Cell Signaling, and Physiological Aspects 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 PDF) Ipamorelin, the first selective growth hormone secretagogue PDF] Ipamorelin, the first selective growth hormone secretagogue. Semantic Scholar Mechanisms of hormone action: I Membrane receptors Oncohema Key