Gingko biloba is well known for its positive effect on memory enhancement. European studies have shown that the extract from the gingko biloba leaf improves blood flow to the brain and extremities, helping to improve memory and mental sharpness. Ginkgo has a demonstrated ability to boost cognitive function, and may be helpful in the early stages of cognitive decline and dementia. Ginkgo flavone glycosides are a balanced group of bioflavonoids primarily responsible for ginkgo's ability to inhibit platelet aggregation (stickiness) and its antioxidant activity.