... bio-active ingredient and the main components of green tea, herbal tea polyphenols, is a highly effective natural anti-oxidants, ... can be described as "the essence of tea. Catechins from tea polyphenols, glycosides, etc. more than 30 kinds of ... [The main ingredients]: Ginkgo biloba, green tea, Chinese wolfberry, puerarin, hemp seed, fresh root, cassia seed and so on. [Product specifications ...