Melasma is a disorder of pigmentation of the sun exposed areas on the face. It occurs more commonly in women, especially those of darker skin types, those on birth control pills or hormone replacement and those that are pregnant. There may also be a genetic component and is exacerbated with sun exposure. The mainstay of treatment is sunscreen, however, topical lightening products, chemical peels, and laser treatments may be necessary. Melasma can be very difficult to treat and returns very easily, especially after sun exposure.