Nature's lab - green tea extract 500mg - 90 capsules green tea extract contains health-promoting polyphenols including epigallocatechin-3-gallate (egcg), an antioxidant that helps protect the body against oxidative stress. The polyphenols contained within green tea extract help metabolism and healthy weight management. One serving of green tea extract provides the benefits of approximately three cups of green tea. . Nature's lab green tea extract 500mg healthy - 90 capsules (90 servings)