Melanotan II Nasal Tanning Spray Risks: Dizziness, Nausea, Skin Cancer Business Insider No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky I was minutes from death after taking 'Barbie drug' everyone needs to be warned 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 (MT) II Melanocortin Receptor TargetMol Melanotan 1 vs. 2: My Summer Journey & Real Results