Melanotan II (Tan Jabs): Why They're Not Worth The Risk 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 longer lasting than No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky Don't risk your health for a summer glow! Tanning nasal sprays are creeping onto the UK market, particularly on online and lack of regulation means they are a significant risk to your