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 longer lasting than 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, The Risks of Fast Tanning 'Barbie Drug' Explained Ever Clinic Amazon.com: Tanning Spray,Tanning Nasal Spray,tanning Sunless sprays,Deep Tanning Dry spray,Sunless tanning Mist,Self Tanning Facial Mist,Natural Looking Tan (1PCS) : Beauty & Personal Care Dangerous 'Barbie drug' Melanotan II sparks crackdown on social media influencers ABC News