Nitisinone increases melanin in people with albinism National Institutes of Health (NIH) 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 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 Melanotan II PERMANENTLY Darkened My Skin! Melanotan What It Is and Its Relation to Skin Cancer The Risks Behind Tan Booster Injections & Nasal Sprays