... %-90% Excellent quality,competitive price Product Name: Green Tea Extract PowderBotanical Name: Camellia sinensisOur Advantage:a. Huge stock for ... specifications, we can supply all the specifications of Green tea extract powder. 1. Polyphenols 20%, 30%, 40%, 50%, 60%, 70%, 80 ... %, 50%, 55%, 60%, 70%, 80%, 90%, 95% HPLC 4. Caffeine 1%, 5%, 8% HPLC All combinations for Polyphenols, Catechins, EGCG, ...