... various processing techniques. Among them, Green Tea contains several active ingredients such as Catechins, Theanine and so on. ... , improving immune system, reducing blood lipids and steroid, etc. Active IngredientsGreen Tea Catechins & Polyphenols Product Specification25% ~ 90% Green ... has the ability to block fat peroxidization and purge active enzyme. 2. Catechin plays an important role in human ...