FDA Fast Facts No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky Think twice before injecting peptides bought online: unauthorized products can seriously harm you Canada.ca Age related ciliopathy: Obesogenic shortening of melanocortin 4 receptor bearing neuronal primary cilia ScienceDirect 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,