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 Skin Pigmentation & Libido This guy injected himself with a drug called Melatonan II for 5 months. Here's his before after. : r pics 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 A Sun Kissed Look, and a Confident You.