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Antioxidants helps to deactivate and destroy particles called free radicals. Free radicals are in the form of oxygen molecules. The oxygen molecules tends to oxidize and when this happens, they tend to be carcinogenic (cancer causing). Free radicals are there within your cells as well in the environment caused by air pollution. These free radicals can damage cell processes within the body and also cause problems to the genetic materials stored inside cells. Antioxidants create a barrier that stops or helps your body (and skin) from free radical damage. In fact, the biggest noticeable damage free radicals do is damage the quality of ones skin and make him/her look old. The best antioxidants for skin care include food that contains Vitamin E and Vitamin C. Intake of Green Tea is also helpful.