... Catechins 10%-90% Excellent quality,competitive price Product Name: Green Tea Extract PowderBotanical Name: Camellia sinensisOur Advantage:a. Huge ... 70%, 80%, 90%, 95% HPLC 4. Caffeine 1%, 5%, 8% HPLC All combinations for Polyphenols, Catechins, EGCG, Caffeine. For example ... 70%+EGCG 40%+Caffeine 5% Specification Sheet Product Name:Green Tea Extract PowderUsed Part:LeafModel No.:GRTSupplier:Hangzhou New ...