Lets look at sunless tanning, ., Firstly theres the injections and nasal sprays which typically have an active ingredient called melanotan. This is a synthetic compound that stimulates the 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, No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky An FDA Reversal on Peptides Could Open the Market to Unsafe Drugs ProPublica Nasal tanners left me suffocating in hospital' Age related ciliopathy: Obesogenic shortening of melanocortin 4 receptor bearing neuronal primary cilia ScienceDirect