Melanotan vs. Astaxanthin for Glowing Skin 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, Tanning from the inside out = Highly Dangerous and Illegal! Many products advertised on social media platforms promising a tan from the inside out or a tan without sun such The Peptide Craze Ground Truths Insights into Tanning Biology and Tanning Products JCAD The Journal of Clinical and Aesthetic Dermatology