... oxygen in air and produce peroxidant, acids, aldehydes etc., and to made shin inflammation, discolor and stinking. Tea polyphenols is not ... of melanin to protect skin from freckle and senile plaque.Application of tea polyphenols in beverage industryWith the dosage of ... 005-0.02% in beverage, tea polypehnols can protect pigments and vitamins from oxidizing and degrading, thus prevent the beverage from ...