Improving an uneven tone, hyperpigmentation or age spots related to UV exposure can be treated with products that include ingredients that have been studied to lighten darker spots. Sun protection is important to prevent the sun from darkening your skin as well as regularly exfoliating skin to improve the appearance of skin that has been damaged by the sun. A variety of ingredients are available in skin care to limit the production of melanin which is the skin pigment that is responsible for darkening skin. Some of these ingredients are Vitamin C, licorice extract, bearberry extract, azaelic acid, hydroquinone and arbutin. The lightening effect is gradual and requires at least 4-6 weeks of daily application along with sun protection to observe the lightening of darker spots and evening of skin tone.