PT-141, also known as Bremelanotide, is a synthetic cyclic research peptide derived from alpha-melanocyte-stimulating hormone, a naturally occurring peptide involved in melanocortin signaling. It has attracted significant scientific interest for its interactions with several melanocortin receptor subtypes, including MC1R, MC3R, MC4R, and MC5R.

Research investigations have focused particularly on PT-141’s activity involving the MC3 and MC4 receptors, which are expressed within areas of the central nervous system associated with neuroendocrine signaling, motivation, reward, arousal, appetite, and energy regulation. Unlike compounds that primarily influence vascular pathways, PT-141 is studied for its potential effects on centrally mediated neurological and behavioral signaling.

Studies involving PT-141 have explored sexual motivation, arousal-related responses, reproductive behavior, hypothalamic activity, autonomic signaling, and communication between the nervous and endocrine systems. Scientists continue to investigate how melanocortin receptor activation may influence neurological responses, behavioral physiology, appetite-related pathways, energy homeostasis, and other complex biological processes within laboratory models.

PT-141 remains an active area of research in studies involving melanocortin biology, central nervous system function, neuroendocrine activity, reproductive signaling, behavioral physiology, and peptide-based receptor mechanisms.

Blackburn Peptides supplies PT-141 as a research-grade material intended exclusively for laboratory and scientific applications.

This product is not intended for human or veterinary use.