Dermoscopic features of labial melanotic macules in diverse skin types How Melanotan 2 Affects Hair Colour Especially in Red or Ginger Hair Pure MT2 Brown spots, especially on the lips, can be alarming to some. In some instances it can indicate rare oral mucosal melanoma, however in this case it was a non cancerous labial melanotic macule. Diagnostic accuracy of pigmented labial macules by in vivo reflectance confocal microscopy and correlation among techniques ScienceDirect