Melanotan II (MT 2) Nasal Spray 10mg 10 mL VPeptide MT 2 Nasal Spray Canada: Ultra Pure Melanotan II Peptide for Pigmentation & Peptide Pathway Research Pyoderma Gangrenosum Secondary to Melanotan Cureus Nasal tanners claim to work by using Melanotan II, a chemical that darkens skin pigmentation. It is illegal to sell medicinal products containing Melanotan II in the UK but since the tanners are sold 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 longer lasting than Eruptive Dysplastic Nevi Following Melanotan Use Actas Dermo Sifiliogrficas