Lip pigmentation Here's the part nobody explains when they're selling you the "Barbie drug.", , Melanotan 2 is a synthetic peptide that mimics alpha MSH a hormone your body already makes to tell your skin cells to Melanotan 2 10mg Priority Aminos ORAL MELANOTIC MACULE (OMM) (Also called focal melanosis labial melanotic macule) A benign, localized, flat pigmented lesion of the oral mucosa Caused by a focal increase in melanin production Dermoscopy of venous lake on the lips: A comparative study with labial melanotic macule PLOS One Clinical Challenge: Dark Lesion on Lower Lip MPR