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The University of Alabama has been conducting research on green tea and sun protection since 2001. They found that the ultraviolet rays in the sun stimulate the skin to produce a large amount of peroxides, which makes human skin rough and lose its elasticity.
The scientists asked the experimenter to apply the catechin extracted from green tea and the placebo which has no effect, and then let the experimenter stand in the violent sunlight. They found that the skin of people who applied catechin beforehand The peroxide content in the green tea is 1/4 to 1/3 less than the other group, that is, the skin is less damaged by the sun, which proves that the ingredients in green tea have sunscreen effects.
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