Dietary supplement that helps increase brain oxygenation, is vasodilator and improves memory and attention. Ginkgo (Ginkgo biloba) is a unique tree in the world, as it is the only living representative of the order of Ginkgoales. This tree is rich in flavonol glycosides and lactones. A glycerinated Ginkgo extract has been selected with a 1:24 ratio. This means that for each gram of extract, 24 grams of plant have been used. The glycerinated extract of Ginkgo Biloba is titrated in flavonol glycosides 5 mg / ml, providing 15 mg per day.