Oxygen-free radicals caused by UV will destroy normal skin, speeds aging process, creates dry skin which can easily lead to skin disease by making the immune system of skin weaker. The role of antioxidant is to neutralize the oxygen-free radicals to protect the skin cells to create healthy skin. The antioxidant line at Dr.J SkinClinic uses the strongest antioxidant the L-Ascorbic Acid, and Polyphenols with high potency to protect skin from free radicals that can come from UV. The synergistic effects, which come from formulating with high concentration of both L-Ascorbic Acid, and Polyphenols, are highly effective than just using L-Ascorbic Acid in the formula. Also based on the results at our research center, using these two ingredients together shows highly effectiveness in radical scavenger, skin lightening, and for collagen stimulator.