PT-141 is the development code name for Bremelanotide, a synthetic hormone used for sexual arousal and desire. Originally researched as a tanning agent, researchers discovered it had a significant effect on libido in both men and women.
Bremelanotide activates the melanocortin receptors in the brain, which are involved in sexual arousal and appetite. Specifically, it targets the MC3R and MC4R receptors. Activation of these receptors is thought to increase signals of sexual desire.
So in short, PT-141 or Bremelanotide is a synthetic hormone designed to treat low libido and sexual dysfunction in adults. It's available under brand names such as Vyleesi.
Some key points about PT-141:
As always, never take any prescription hormone treatments without close medical supervision. Side effects are possible even with sexual arousal agents like Bremelanotide. But for some patients, it can provide life-changing improvements in sexual desire/response.