 Melasma is a chronic acquired hypermelanosis of the skin that affects mainly women and more pigmented phenotypes, characterized by irregular brown macules on sun exposed areas, particularly on the face, with an impact on quality of life. Its pathogeny involves various triggering factors such as sun exposure, pregnancy, hormones, inflammation, cosmetics, steroids, and photosensitizing drugs, and has a clear genetic predisposition. This article was authored by Anna Carolina Handel, Lucienne Danita Bartoli Maid and Elio Amante Maid.