Oral Melanotic Macule: Symptoms and Treatment Skinsight Melanotan 2 (MT II) 99% Pure Nationwide Peptides 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 Labial melanotic macule Review of Dermoscopy and Reflectance Confocal Microscopy Features of the Mucosal Melanoma