Dietary Supplement. Highest potency 3.0% Ginkgolide B. Supports concentration and memory. Ginkgo Biloba has been used medically for thousands of years. Today, clinical research has substantiated the amazing biologic effects of Ginkgo by establishing its ability to increase blood flow to the brain and peripheral tissues. This means greater oxygen and vital nutrients to these areas. Of the active compounds, Ginkgolide B has been shown to be the most potent and effective. MRM offers you the highest percentage of Ginkgolide B with an outstanding minimum of 3.0% for maximum benefits. The MRM Advantage: Assists mental sharpness. Supports circulatory health. Guaranteed 3.0% Ginkgolide B. Contains no common allergens (e.g. no gluten or soy).