PT-141, also known as Bremelanotide is a cyclic 7-amino acid melanocortin receptor agonist. It is a synthetic analogue of alpha-melanocyte stimulating hormone (α-MSH) and is an active metabolite of Melanotan 2. It belongs to the same family as that of Melanotan 2 and has the same structure, except that PT-141/Bremelanotide has a hydroxyl group at the end unlike MT2 which has an amide at the end.

PT-141/Bremelanotide works by non-selectively stimulating the melanocortin receptors MC1, MC3, MC4, and MC5. However, it shows high infinity to the MC4 receptor.

Activation of the MC receptors is involved in a number of biological processes including skin pigmentation, sexual arousal, penile erection, appetite suppression, and pain reception. Buy PT-141 Bremelanotide from Loti Labs!