1. Absorbing ultraviolet rays to prevent sunburn
Free radicals are important factors causing aging, and ultraviolet radiation is the main source of skin free radicals. Tea polyphenols can directly absorb ultraviolet radiation, so tea polyphenols can directly prevent ultraviolet radiation damage to the skin. Tea polyphenols, known as ultraviolet "filters", are the largest effective skin protectant.
2. Antioxidant, anti-aging
Tea polyphenols can scavenge free radicals, inhibit lipoxygenase and lipid peroxidation in skin line stereo, prevent wrinkles and delay aging.
The results showed that tea polyphenols had better antioxidant activity than vitamin E, and had synergistic effect with vitamin C and E.
3. Inhibiting Melanin, Beauty and Skin Care
Tea polyphenol is a water-soluble substance. It can remove greasy and astringent pore on face by washing face. It has the functions of disinfection, sterilization and anti-aging of skin.
Tea polyphenols can block ultraviolet rays and eliminate ultraviolet-induced free radicals, thus protecting the normal function of melanocytes and inhibiting the formation of melanin. At the same time, it can inhibit lipid oxidation and alleviate pigmentation.