Pyoderma Gangrenosum Secondary to Melanotan Cureus Emerging Threat: Melanotan, Repackaging, and Online Sales Melanotan I (MT I) MCR Agonist MedChemExpress Melanotan II (Tan Jabs): Why They're Not Worth The Risk There has been a worrying increase in the number of young people using sunbeds. Some people are also using nasal sprays and injections with melanotan II in to boost their tan. This isn't Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and