Darkening of the skin is due to hyperpigmentation of a pigment called Eumelanin. The number of melanin pigments varies from different races. Filipinos also have varying number of melanin pigments. Sun exposure activates production of these melanin pigments.
Pinky Casiding, MD Sunblock is very important in preventing further skin darkening. And the use of Pinky Casiding, MD Whitening Creams will also block the formation of Eumelanin.