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 I was minutes from death after taking 'Barbie drug' everyone needs to be warned Reminder of serious health risks with 'Melanotan 2' self tan products Irish Pharmacist