GHRP-2 is a growth hormone–releasing peptide widely studied for its interaction with ghrelin receptors that initiate endogenous growth hormone signaling cascades. Research models often examine its role in receptor-mediated hormone release, metabolic coordination, and anabolic signaling environments. As a foundational compound in endocrine pathway research, GHRP-2 remains highly relevant for investigators studying growth hormone regulation and hormonal response mechanisms.