Tanning, fake tan and Melanotan Cancer Research UK Can You Overdose on Melatonin? Martina Big, 36, who is from Germany, and her husband Michael Eurwen, 38, who both injected Melanotan, a synthetic hormone to darken their skin have announced that they are planning to permanently Dangerous 'Barbie drug' Melanotan II sparks crackdown on social media influencers ABC News What is melanotan and why is it so dangerous? 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