... Part]Leaf[Active ingredient] Tea polyphenol[Specification] (1)Tea polyphenols>98%,Catechin>90%,EGCG 60-70%,caffein<0.5% ... (2)Tea polyphenols>95%,Catechin70-80%,EGCG 45-50%,caffein0.5-9% ... caffein1-10% (4)Tea polyphenols>70%,Catechin>50%,EGCG 25-30%,caffein1-11% (5)Tea polyphenols>30-50%,Catechin10-40%,EGCG 8- ... quality products[Packing]25KG/Drum Green Tea Extract Polyphenols