Research Comparison
Oxytocin vs PT-141 (Bremelanotide)
A side-by-side research comparison of Oxytocin and PT-141 (Bremelanotide) drawn from Cobalt Peptides' peptide database records.
Oxytocin
Oxytocin is a cyclic nonapeptide hormone and neuropeptide produced in the hypothalamus and released by the posterior pituitary. It is central to social bonding, emotional regulation, reproduction and lactation, and is widely studied in neuroscience for its role in social cognition. Licensed medicines containing synthetic oxytocin exist and are prescribed by clinicians in obstetric settings; the material supplied here is a research compound and is not one of them.
PT-141 (Bremelanotide)
PT-141 (bremelanotide) is a synthetic melanocortin receptor agonist with selectivity for the MC3 and MC4 receptors in the central nervous system. Its described mechanism is central rather than vascular, which distinguishes it from compounds acting on peripheral blood flow such as PDE5 inhibitors. A licensed medicine containing bremelanotide exists in some jurisdictions and is prescribed by clinicians; the material supplied here is a research compound and is not that medicine.