Quality product, competitive price Specifications can supply: Tea polyphenol: 20%-98%, EGCG: 10%-99%, Catechin: 30%-90% ... Carbohydrate, Protein, Amino acids, Vitamins,etc. Test Method:HPLCSpecifications can supply: Tea polyphenol: 20%-98%, EGCG: 10%-99%, Catechin: 30%-90 ... and halitosis etc. Besides Green Tea Extract, we also can supply Black Tea Extract, Oolong Tea Extract, Pu'er Tea Extract, Jasmine ...