Dietary Supplement. For improved mental sharpness. Clinically proven. Memory. Concentration. Mental activity. Standardized ginkgo biloba extract. The world's No. 1 selling ginkgo extract. Doctor recommended. Used in over 400 scientific studies. Patented with over 20 actives & co-actives. The only ginkgo extract shown to increase activity in all areas of the brain. Ginkgold is made by the Dr. Willmar Schwabe Company, a world leader in plant-based pharmaceutical research for over 100 years.