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Dermatologist examining the skin on the back of an older woman for signs of sun damage or skin cancer

Answer:

Supplements containing beta-carotene, cocoa, vitamin C, and/or vitamin E may provide modest protection from sun damage to the skin, according to small studies. There is also some preliminary evidence that a branded fern extract (Fernblock/Heliocare) may be helpful. Certain herbal supplements and intake of some citrus fruits, however, may actually increase photosensitivity, and the effects of citrus fruits may depend on the specific type of fruit, such as orange versus grapefruit. Get the Full Answer >>

Also see our article about contamination of sunscreens.

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