Science-Based Nutrition Dietary Supplement ProfileProven Quality Assurance Promotes Mental Function and Memory Vegan Extra Strength Ginkgo supplies premium quality Ginkgo biloba standardized extract, guaranteed to contain a minimum of 24% flavone glycosides and 6% terpene lactones, as verified by independent laboratory analysis. Supports circulation in the brain, promotes mental function and memory. This Ginkgo Extract is guaranteed by the ProfileProven Quality Assurance system developed by Ethical Naturals, Inc. This process includes the most extensive testing and screening at every stage of manufacturing to assure purity and potency.Doctor's Best