PDF) Increasing illegal use of Melanotan: The Barbie drug hype Background MT 2 Melanotan II 10 mg Is It Possible to Overdose on Melatonin? Here's What to Know Melanotan 2 Day 4: Whacky Side Effects. I am cutting back from daily use and probably using once a week from here on out. Zero appetite Fatigue And what I think was 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 A Current Affair: Tanning 'Barbie drug' a danger to users, experts say