... 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%, 80%, 90% HPLC 3. EGCG 10%, ... 15%, 20%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 70%, 80%, 90%, 95% HPLC 4. Caffeine 1%, ... EGCG, Caffeine. For example, Polyphenols 95%+Catechins 70%+EGCG 40%+Caffeine 5% Specification Sheet Product Name: ...