MT 2 (Melanotan II) Polar Peptides Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Melanotan II: Tanning injections, nasal sprays harmful to health The Truth About Melanotan: Tanning Peptide or More? No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky We are OBSESSING over this Melanotan II transformation After only 14 days using the Melanotan injections combined with one day of laying in the sun, can you believe the difference?? Nothing