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 Melanotan 2 : Benefits and Changes for People with Red Hair Pure MT2 I was minutes from death after taking 'Barbie drug' everyone needs to be warned Melanocortin 1 receptor gene 2 months melanotan 2. ex ginger black beard, hair & body hair also darkened. Welcome to my first summer without tomato look :)) : r Melanotan2