It is one of the ingredients extracted from green tea, the main active and water-soluble in gredient of green tea, which is the highest content of tea catechins.

The appearance is light yellow to grey-white poeder, easy soluble in water and containing water ethanal. It's stable between PH4-8, easy to deteriorate when meeting with strong alkali, strong acid, sunlight, heat and transitional metal. The product is manufactured by advanced technology with processes of extraction, purification and separation. Which possessing the high purity and safety with innocuity.