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Sunscreen: Does It Have Anti-Aging Properties?
SPF – Sun Protection Factor. Everyone who’s ever used sunblock probably knows this term, but don’t know much about exactly what it does. It basically protects the skin from UVB light emitted by the sun. UVB light causes sunburn, redness on the skin. If a sunblock has a high SPF, you can probably avoid getting red and puffy by using it.
UVA – Less widely known but also emitted by the sun. This light doesn’t cause visible damage to the skin but can cause skin cancer with pro-longed exposure. This also causes the skin DNA to change, darken, and tan. The only ingredients that protects against UVA light are titanium dioxide and zinc oxide.