How Melanotan 2 Affects Hair Colour Especially in Red or Ginger Hair Pure MT2 Here's the part nobody explains when they're selling you the "Barbie drug.", , Melanotan 2 is a synthetic peptide that mimics alpha MSH a hormone your body already makes to tell your skin cells to Melanotan 2 doesn't just stimulate melanin in your skin, but your hair follicles aswell .. my beard is about 80% darker today, than a month before I started taking melanotan. Guys with Melanotan 2 Tanning Peptide 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,