... %, EGCG: 10%-99%, Catechin: 30%-90% Product Name: Green Tea Extract, Green Tea P.E., GTEEnglish Name: Tea polyphenolOther Name:Green ... etc. Besides Green Tea Extract, we also can supply Black Tea Extract, Oolong Tea Extract, Pu'er Tea Extract, Jasmine Tea Extract. Our quality can ... of us. 75% polyphenols / 50% catechins / 30% EGCG Green tea extract