... 90%/Off-whiteMedicine, Health foodCosmeticsEGCG 60%Tea Polyphenol 99% min, Tea Catechins 80% minYellowHealth foodCosmetics, FoodEGCG 50%Tea Polyphenol 99% min, Tea Catechins 75% minDark ... (-)-Epigallocatechin gallate (egcg), an most potent antioxidant polyphenols of green tea, is associated with antioxidant, antitumor and antimutagenic activities. The antioxidant ...