Our premium Bilberry concentrate contains 250 capusles. Each capsule contains 1000mg of concentrated bilberry (4:1 concentration). Our products contain no binders, fillers, preservatives, or added coloring, flavoring, or sugar. Bilberry typically contains: Tannins - 5-10% catechin tannins: Carbohydrates - 30% invert sugar and pectins: Flavonols - Flavonol glycosides including astragalin, hyperoside, isoquercitrin and quercetin: Phenolic acids - Anthocyanosides The anthocyanins in bilberry contribute to most of its beneficial activities. Bilberry supports your body's natural anti-inflammatory, vasoprotective, and antioxidant systems. Bilberry supports your body's natural systems against free radical damage. Bilberry anthocyanins support night vision and overall eye health.