Bluebonnet's Standardized Ginkgo Biloba Leaf Extract Capsules provide Ginkgoselect from Indena, a standardized extract of ginkgo flavonglycosides and terpene lactones, the most researched active constituents found in ginkgo biloba. A clean and gentle water-based extraction method is employed to capture and preserve ginkgo biloba's most valuable components. Available in easy-to-swallow vegetable derived capsules for maximum absorption and for a truly vegetarian/vegan formula.