PT 141 Set Research Peptide Bundle Pure Bio Labs Simple cryosurgical treatment of the oral melanotic macule ScienceDirect 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 PT 141 Peptide Injections Concierge MD PT 141 10mg (Research Grade) Pepgenix Peptides