Nature's Way Ginkgo supports concentration, memory, and blood flow to the brain. Ginkgo extract standardized to 24% ginkgo flavone glycosides and 6% terpene lactones.Ginkgo trees date back t the prehistoric era and have been known to live for up to 4,000 years. The trees grow in a multitude of environmental conditions and are remarkably resilient to diseases and pests. The leaves have been used in wellness practices for thousands of years to support memory and concentration.