Melanotan 2 Pigmentation pathways, Appetite regulation Research MELANOTAN II PEPTIDE 10MG VIAL UMBRELLA Labs Melanotan What It Is and Its Relation to Skin Cancer Melanotan II is the product that's been dubbed the "Barbie drug" on social media, and promises to give users a tan without the sun but it can have serious side effects including, in rare cases, 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