Melanotan II (Tan Jabs): Why They're Not Worth The Risk Melanotan II PERMANENTLY Darkened My Skin! Nitisinone increases melanin in people with albinism National Institutes of Health (NIH) 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 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