What Is Melanotan, the So Called Barbie Peptide? PS Beauty An oral melanotic macule is a harmless dark spot found on the lip, most often the lower lip, or inside the mouth, either on the gums, inside the cheek, or on the roof of the mouth. An oral melanotic 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 How Melanotan Peptides Work to Enhance Skin Tone and Promote Tanning Age Well ATL Fake tanning Melanoma Fund UK Lip Melanotic Macule Holistic Removal TikTok