Here's the part nobody explains when they're selling you the "Barbie drug.", Melanotan 2 is a synthetic peptide that mimics alpha MSH a hormone your body already makes to tell your skin cells to Melanin Injections Are the Dangerous Way Some People Are Trying to Tan NewBeauty Melanotan II is a peptide that supports melanin production meaning your glow can start from the inside out (without living out in the sun or tanning beds). Our WCC nurses Melanotan II: Tanning injections, nasal sprays harmful to health No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky Melanotan Uses, Safety, Cost RealSelf