Warning issued over increased use of 'Barbie drug' Oral medicine: 7. red and pigmented lesions Dental Update 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 Dark Patches Inside Mouth: 7 Alarming Causes Liv Hospital Are Freckles on Lips a Cause for Concern? Causes, Remedies Melanotan II (Tan Jabs): Why They're Not Worth The Risk