Anti-oxidation is the anti-oxidation free radical, which is a very normal by-product in the process of cell metabolism. Free radicals are not absolutely redundant in the human body. Some physiological functions can only be realized with the participation of free radicals.
But the excess free radicals that can't be used will attack other cells. When it attacks melanin, melanin will be very active, causing spot precipitation or overall blackening. When it attacks aging cells, it will damage collagen and produce looseness or fine lines. The series of actions of free radicals make the skin gradually decay and lose its normal functions. Melanin precipitation, dark yellow skin, roughness, and accelerated aging are all related to the activity of free radicals.