Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and White model Martina Big, who now a ''black' after taking tanning injections, announces plans to move to Africa. Dangerous' tanning products promoted by influencers Melanotan II 10mg MC1R MC4R Melanocortin Peptide 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,