Bluebonnets Standardized Bilberry Fruit Extract Capsules contain Mirtoselect from Indena, a standardized extract of anthocyanins, the most researched active constituents found in bilberry fruit. A clean and gentle water-based extraction method is employed to capture and preserve bilberrys most valuable components. Available in easy-to-swallow vegetable derived capsules for maximum assimilation/absorption and for a truly vegetarian/vegan formula.