Melanotan II (Tan Jabs): Why They're Not Worth The Risk No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky MT 2 (Melanotan II) Polar Peptides We are alerting the public of the serious health risks posed by the unauthorised substance Melanotan 2, often described as a self tanning aid. We strongly advise members of the public not to Melanotan 2: 10 mg for Research UK SARMs