GHRP 6: A peptide that signals growth and hunger? GHRP 6 is a growth hormone releasing hexapeptide. Unlike synthetic GH, it works by triggering your body's natural secretion. What research explores: Muscle preservation Appetite vs Hunger: How to Tell the Difference Jackie Silver Nutrition 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