The Ginkgo biloba is the oldest tree in the world. It appeared 270 million years ago and can live up to 3000 years. Very common in Japan, this tree, studied for its exceptional resistance, even survived the Hiroshima atomic bomb. In addition to its longevity, ginkgo leaves have numerous therapeutic benefits. They are reputed to improve cerebral aging (memory impairment, cognitive disorders, depression...) and to relieve blood circulation disorders.