Bluebonnet’s Standardized Hawthorn Herb Extract Capsules contain a standardized extract of flavonoids and vitexin, the most researched active constituents found in hawthorn. A clean and gentle water-based extraction method is employed to capture and preserve hawthorn’s most valuable components. Available in easy-to-swallow vegetable derived capsules for maximum assimilation/absorption and for a truly vegetarian/vegan formula.