The labial melanotic macule: a review of 79 cases 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 Oral Malignant Melanoma Oral Cancer Foundation Information and Resources about Oral Head and Neck Cancer Risks of Melanotan: TGA to issue fresh warning against 'Barbie drug' The Australian