PT 141 (Bremelanotide) is a synthetic peptide developed from Melanotan 2 (MT II). PT 141 was recently approved for the treatment of HSDD (hypoactive sexual desire disorder) in women. PT 141 is a peptide that was PT 141 (Bremelanotide) 10MG Raw Amino In the 1990s, researchers at the University of Arizona were testing Melanotan II as a tanning agent. During clinical trials, they noticed something unexpected: the compound was causing spontaneous erections in male How PT 141 Bremelanotide Helps? Particle Peptides PARTICLE, s. r. o.