Quality product, competitive price Specifications can supply: Tea polyphenol: 20%-98%, EGCG: 10%-99%, Catechin: 30%-90% Product Name: ... Amino acids, Vitamins,etc. Test Method: HPLCSpecifications can supply: Tea polyphenol: 20%-98%, EGCG: 10%-99%, Catechin: 30%-90%Medical Effects ... teeth, dental plaque, dental arthritis and halitosis etc. Supply other tea extract products:Besides Green Tea Extract, we ...