Many people have melasma.
It is a skin condition which forms dark brown-grey and tan patches on the face, most often on the cheeks, nose, chin, upper lip and forehead.
It also sometimes appears in other places that are exposed to the sun such as the forearms and neck.
Melasma causes no physical discomfort, but dark marks on the face can cause embarrassment and loss of self-esteem (1).
Melasma can be treated, but unless best sunscreen for melasma is used to prevent damage by the sun's ultraviolet rays, the unsightly spots will return.