Warning issued over increased use of 'Barbie drug' 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 No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky Unlock Your Natural Glow with Melanotan and Say Goodbye to Hours Under the Sun Sponsored Content herald dispatch.com