PT 141, scientifically referred to as Bremelanotide, is a synthetic peptide developed through extensive structural modification of the naturally occurring alpha melanocyte stimulating hormone (a MSH). This peptide has gained considerable interest Simple cryosurgical treatment of the oral melanotic macule ScienceDirect Summit Enlighten Laser to treat labial melanotic macules on the lip before and after. Facebook Pigmented Lesions of the Oral Mucosa Springer Nature Link