Longevity is important to the ginkgo biloba tree, which can live as long as 1,000 years. From ginkgo’s uniquely shaped leaves come an extract shown to support circulation to the brain as well as the extremities. Ginkgo biloba also helps maintain healthy blood vessel tone and reduce blood viscosity.* Ginkgo biloba extract is the most frequently prescribed herbal extract by both doctors and pharmacists worldwide and is the best-selling natural healthcare product in Europe.