
PT-141 (10mg)
PT-141 (Bremelanotide) is a synthetic peptide derivative of melanotan II that activates central melanocortin receptors (MC3R and MC4R), investigated in research for effects on sexual arousal pathways distinct from peripheral vasoactive mechanisms.
About PT-141
PT-141 (also known as Bremelanotide) is a synthetic seven-amino-acid peptide derived from melanotan II. Research on PT-141 has focused on its central nervous system activity at melanocortin receptors, particularly the role of MC3R and MC4R signaling in sexual arousal pathways. It is studied as a centrally-acting mechanism distinct from peripheral vasoactive compounds.
Mechanism in Research Literature
Research on PT-141 has documented:
- Activation of MC3R and MC4R melanocortin receptors in the central nervous system
- Effects on sexual arousal pathways in research models
- Activity in both male and female reproductive research
- Distinct mechanism from PDE5 inhibitors and peripheral vasoactive compounds
- Effects observed via central rather than peripheral pathways
Research Context
PT-141 has been investigated in studies exploring:
- Central melanocortin receptor pharmacology
- Sexual arousal pathway research in both sexes
- Hypoactive sexual desire research models
- Comparative pharmacology vs. peripheral vasoactive compounds
- Melanocortin receptor selectivity studies
Related Research Peptides
PT-141 appears in literature alongside Kisspeptin (upstream reproductive hormone pathway), HCG (downstream gonadotropin signaling), and other melanocortin-related research peptides.

