... .Polyphenol 95%, EGCG 45%, Caffeine <5% 2.Polyphenol 98%, EGCG 50%, Caffeine <1% Green Tea ExtractGreen, black, and oolong tea are ... :Botanical Name: Camellia sinensisFamily : TheaceaCommon Name : Green TeaStandardized For: Upto 50% Epigallocatechin Gallate (EGCG) by HPLC, up to 95% total Polyphenols ... times the caffeine content of green tea. Green Tea Extract 50% Epigallocatechin Gallate (EGCG)