Management of facial hyperpigmentation.

Facial and neck pigmentations are the most cosmetically important. They are common in middle-aged women, and are related to endogenous (hormones) and exogenous factors (such as use of cosmetics and perfumes, and exposure to sun radiation). Melasma (chloasma) is the most common cause of facial pigmentation, but there are many other forms such as Riehl’s melanosis, poikiloderma of Civatte, erythrose peribuccale pigmentaire of Brocq, erythromelanosis follicularis of the face and neck, linea fusca, and cosmetic hyperpigmentations.