... supply: Tea polyphenol: 20%-98%, EGCG: 10%-99%, Catechin: 30%-90% Product Name: Green Tea Extract, Green Tea P.E., GTEEnglish Name: Tea polyphenolOther Name: Green Tea P ... natural antioxidants: either in Antioxidizing, security, or use cost, Tea polyphenol is obviously better than synthetic antioxidants, eg: BHA, BHT, ... away from direct sun light. 100% pure natural Green Tea Extract 98% polyphenol