Risks of Melanotan: TGA to issue fresh warning against 'Barbie drug' The Australian Melanotan is not a tan. It's an unregulated peptide with real risk. As a dermatologist, here's the reality: It has been linked to new and changing moles including cases of Targeting the central melanocortin system for the treatment of metabolic disorders Nature Reviews Endocrinology Sun and Skin: From Burns to Melanoma, What Every Clinician Needs to Know and Share The Peptide Craze Ground Truths I was minutes from death after taking 'Barbie drug' everyone needs to be warned