GHRP-6 (Growth Hormone–Releasing Peptide-6) is a synthetic hexapeptide commonly used in scientific research to investigate growth hormone secretion and related signaling pathways. By selectively binding to the growth hormone secretagogue receptor (GHS-R), it serves as a valuable model compound for studying pituitary activity, endocrine regulation, and receptor–ligand interactions within controlled laboratory environments. Across broader research applications, GHRP-6 is examined for its influence on metabolic processes, appetite signaling, and muscle and tissue physiology. Researchers also utilize it to explore neuroendocrine communication and hormonal feedback mechanisms, particularly in studies focused on energy balance and cellular adaptation.