MT 1 (Melanotan I) 10mg Research Peptide Laboratory Grade PT 141 10mg for Research Almighty Peptides 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 melanotan 2 and pt 141 are often talked about in different ways, but they can be connected in how they affect how peoplethis is feel. this is educational content only. #womenover4ot that nobody