Green Tea Extract Powder Specification:Polyphenols 20%-98% EGCG 10%-95%,Catechins 10%- ... all the specifications of Green tea extract powder. 1. Polyphenols 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90 ... %, 95%, 98% UV 2. Catechins 10%, 15%, 20%, 25%, 30%, 40%, 50%, 60%, 65%, 70%, 75%, ... Polyphenols 95%+Catechins 70%+EGCG 40%+Caffeine 5% Specification Sheet Product Name:Green Tea Extract PowderUsed Part: ...