The most common GH releasing peptides: Ipamorelin A ghrelin receptor agonist that triggers short pulses of growth hormone release from the pituitary with minimal effects on cortisol, prolactin, or appetite. Tesamorelin Ipamorelin: A Scientific Perspective on a Selective Growth Hormone Secretagogue PARTICLE, s. r. o. The 4X Blend: A Peptide Based Mixture for Recovery, Metabolism, and Au Alpha BioMed Definitive Guide to Growth Hormone Secretagogues Best HGH Doctors 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