The Gingko Biloba tree is one of the oldest species of trees on the planet, and the tree can grow up to 130 feet and live for over 1000 years. The leaves and the seeds have been used for a thousand years in traditional Chinese medicine, but the leaves are now used in most herbal formulas. It has been used for improving circulation due to increasing levels of Nitric Oxide which dilates blood vessels*. It has been used for enhancing cognitive function*, and it may also help alleviate anxiety and depression*. Nano Gingko Biloba has been nano particle-sized (1-100 nm in size).