Jarrow Formulas - Bilberry + Grapeskin Polyphenols 280 mg. - 120 Vegetarian Capsules Jarrow Formulas Bilberry + Grapeskin Polyphenols is a synergistic blend of standardized flavonoid antioxidants. Swedish bilberries (100:1 extract) contain 25% polyphenols as anthocyanosides. Red Grapeskin extract