The Best Anti-Aging Ingredients on the Market, According to Science

Green tea is another antioxidant-rich ingredient that helps ward off free radicals. "In the skin, free radicals induced by UV rays cause damage to DNA and proteins and destabilize the membranes of keratinocytes leading to premature aging of the skin cells," explains dermatologist Dr. Luigi L. Polla. "In other words, oxidation equals aging. When exposed to UV rays, the skin undergoes changes resulting in inflammation, photoaging and various skin disorders."

Green tea contains four major antioxidant flavonoids that have the ability to neutralize a number of the most harmful free radicals.

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