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 Melanotan What It Is and Its Relation to Skin Cancer Mucosal melanocytic macules Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn MD breaking down Melanotan II Part 2 of my peptide series. The research, the risks, the reality. Long term safety data? Nonexistent. MELANOTAN EXPLAINED! Benefits, Risks, Side Effects