Exposure to sunlight and pollutants, hormonal changes and skin aging can cause pigmentation and the appearance of dark spots on the skin. Although you can hide the discolored areas on the skin of her face with makeup, for permanent relief you need a solution that is safe and easy. Citrus juice is widely used for bleaching dark spots and skin pigmentation. Sandalwood is another time honored remedy to improve the complexion. Here is a video showing how to combine sandalwood and citrus juice to make a mask that promises daily when used to balance the skin.