Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn How melanotan changed the color of my hair permanently YouTube Martina Big, a 36 year old German model, and her 38 year old husband Michael Eurwen have used Melanotan injections to darken their skin. They plan to relocate to Africa, where they feel a deep connection, A new viral beauty habit that could have "catastrophic" long term consequences. Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and longer lasting than