Stay Sun Kissed All Year Round with Melanotan 2 Melanotan is a tanning peptide that stimulates the production of melanin in the body to foster a deep, natural tan. This is the Martina Big, a 36 year old German model, has undergone extensive tanning procedures and surgeries to alter her appearance, including the use of Melanotan injections to darken her skin. She and her 38 year old husband, Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Tanning, fake tan and Melanotan Cancer Research UK