Green Tea powder Active ingredient:tea polyphenols, EGCG Test method:UV ISO,Kosher, ... Test method:UV ISO,Kosher,HALAL certificates munufacturer Green Tea powder Introduction of Green Tea powderGreen tea extract is a bioflavonoid ... %~80% of total phenols. Catechin type is composed of D,L-C,EC,EGC,EGCE,GCG,ECG and so on, the ...