60 mgStandardized Extract. The Smart Herb™. 24% Flavone Glycosides. The Smart Herb!™. Natural Balance® uses only premium grade Ginkgo Biloba extract standardized to 24% flavone glycosides with the proper balance of 6% terpene lactones. Studies have suggested that a daily amount of 120 mg standardized Ginkgo Biloba may help you think more clearly and support your mental energy. . Discover Natural Balance®. For over 25 years Natural Balance has energized people's health and well-being by offering specialty supplements that work. Scientifically blending select high-quality herbs into proprietary formulas is our art. Helping people live healthier more enjoyable lives is our passion. . Gift from Nature. Ginkgo Biloba is one of the oldest living species of trees and individual ones may live 1000 years or more. Ginkgo has been used for centuries in China and today its extract form is a top seller in Europe. About 50 pounds of leaves are needed to make just one pound of this concentrated extract. Ginkgo is one of th3e most widely studied herbal supplements and mental functioning. . Researchers believe that components of the extract may have antioxidant activity in the brain and nervous system. Hence Ginkgo is known for its neuro-protective benefits. Ginkgo Biloba extract may help support mental energy and vitality as we get older. Ginkgo also is intended to provide nutritive support for healthy circulation and blood flow. Ginkgo has been suggested in studies to help assist people in activities at high altitudes.