... factory supplys Green Tea Extract(Gamellia sinensis O.Ktze)with specification Tea polyphenol 40%,80%,90%,98% Green Tea ExtractBotanical sourcesGamellia ... sinensis O.KtzeActive Ingredients 1. Tea polyphenol 40% ... 95% (Catechin:70%, EGCG:40%, Caffeine:1%)4. Tea polyphenol 98% (Catechin:80%, EGCG:50%, Caffeine:0 ...