Ipamorelin is a synthetic peptide classified as a growth hormone secretagogue (GHS) and selective ghrelin receptor agonist. It is primarily studied for its role in stimulating the release of growth hormone from the pituitary gland, influencing pathways related to muscle growth, recovery, fat metabolism, and sleep regulation. It has also been examined for its ability to increase growth hormone signaling without significantly affecting cortisol or prolactin levels. For laboratory research only — not for human use.