The Ginkgo biloba or Japanese walnut tree, originally from Central China, is the oldest living tree species on earth (about 300 million years). The extract of the leaves of Ginkgo biloba has a beneficial effect on our health in various ways. In traditional Chinese medicine, ginkgo leaf has been used to support health for more than 5,000 years. In Western countries it is mainly used to support blood circulation and cognitive functions (such as memory, concentration and learning).