Skin Care, Anti-Aging and Health Tips and Advice
Skin Care Sun Protection
The protection factor is only part of the story. A product with an S.P.F. of 30 may have a UVA protection rating of only 2. Your sunscreen should be a broad-spectrum one that also blocks UVA radiation. Two ingredients now used in “complete” sunscreen in cosmetically acceptable micronized forms are titanium dioxide and zinc oxide.
Two other agents that offer broad-spectrum protection, Mexoryl and Tinosorb, help to stabilize UVA protection during prolonged exposures. They are available in Canada and Europe but have not yet been approved by the Food and Drug Administration here.
Because sunscreens must react with the surface of the skin to be effective, they should be applied 15 to 30 minutes before going out in the sun. Most products should be reapplied every two hours.
Swimmers and those performing intense physical activity should use a water-resistant or very water-resistant sunscreen. But all sunscreens, whether water-resistant or not, should be reapplied after swimming or profuse sweating.
And don’t forget to use enough: one ounce, the amount in a shot glass, should be used to cover exposed skin in summer.
Sunscreens should be used by everyone over the age of 6 months. Younger infants should be kept out of the sun at all times – use sunscreen on them only in rare situations when sun exposure is unavoidable.
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