PT-141

PT-141, also known as bremelanotide, is a peptide that works through melanocortin receptors in the brain. Researchers study this pathway because it is linked to sexual desire and arousal signals in the nervous system. What makes PT-141 different from many other sexual-wellness research compounds is that its main focus is brain signaling rather than simply changing blood flow. A prescription form of bremelanotide has been approved for a specific sexual-desire disorder in certain premenopausal women. That makes the melanocortin pathway an important area for research on desire, arousal, brain signals, and sexual behavior.