This product contains GinkgoSelect which is produced by a patented multi-phase extraction process resulting in a standardized 24% ginkgoflavonglycoside (or heteroside) and a minimum of 6% terpene lactone extract. Ginkgolides A and B are the most active fractions. Ginkgo Biloba has a wide range of beneficial effects including circulatory and antioxidant protection.*Other products from HerbsPro