The dried leaves of camellia sinensis are known as Green Tea leaves. Green tea is rich in plyphenols which provide a strong antioxidant property. Studies have suggested, green tea aids in weight loss, protect cardiac health, lowers blood sugar and promotes liver health. ZENITH NUTRITIONS Green Tea extract 400 mg is better because it: Is standardized to 65% plyphenols, 55% catechins and 45% EGCG for superior potency. It is sugar free, lactose free and gluten free. Provides 400 mg of green tea extract in a one-capsule-per-day serving.