Ginkgo Biloba supplement has long been used to help to improve memory, mental alertness, and concentration – both of which may be reduced as you grow older. Ginkgo extract, from the leaves of the Ginkgo biloba or maidenhair tree, is rich in phytonutrients and has been used for thousands of years in traditional Chinese medicine. It also is the most commonly used herbal medicine in Europe. Ginkgo Biloba also stimulates peripheral circulation, thereby enhancing blood flow to the arms, legs and brain. Modern research suggests that Ginkgo Biloba can enhance blood flow to various tissues and organs, support the levels of neurotransmitters, and neutralize free radicals.