50 Weeks on Melanotan2. Used to be Type 1 and never able to tan. Have never felt better! Beard color change is epic : r Melanotan2 melanotan II C50H69N15O9 CID 92432 PubChem Melanotan II A Sun Kissed Look, and a Confident You. The "Barbie Drug" Has a Dark Side 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 Melanotan II Wikipedia