Health warning over banned tanning drug The Canberra Times Canberra, ACT Emerging Threat: Melanotan, Repackaging, and Online Sales 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 MD breaking down Melanotan II Part 2 of my peptide series. The research, the risks, the reality. Long term safety data? Nonexistent.