Melanotan is trending again. As a dermatologist, I strongly need to tell you , Its an unapproved injectable peptide, and were seeing:, nausea and flushing, darkening of existing moles, Melanotan What It Is and Its Relation to Skin Cancer Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky Melanotan What It Is and Its Relation to Skin Cancer