... :UV ISO,Kosher,HALAL certificates munufacturer organic Green Tea Extract Introduction of Green Tea ExtractGreen tea extract is a bioflavonoid rich, potent extract ... contains a high content of polyphenols, which are a class of bioflavonoids. Green tea extract contains a potent antioxidant, EGCG, which is ... C,EC,EGC,EGCE,GCG,ECG and so on, the first three types are the simple catechin ( free type),the ...