Actually Effective Potency 250 mg Ginkgo Extract - 500 mg Total Antioxidant that Nutritionally Supports Oxygenation, Circulation, & Brain Function Dietary Supplement HealthForce Nutritionals Nutritional Therapy - When Nutrition Really Matters Vegan Don't Give Up On You! One VeganCap per day contains 400% more Ginkgo extract than most other products. Numerous studies have shown that Ginkgo is far more effective in higher amounts (at least 120 mg up to 600 mg per day), and more effective when taken in higher potencies less times per day than lower potencies more times. HealthForce CircuForce contains 250 mg Ginkgo Biloba extract + Siberian Eleuthero extract and Gotu Kola extract as supportive herbs. HealthForce CircuForce offers the maximum effectiveness at the best possible value. EcoFresh Nutrient Lock Packaging - Recyclable amber glass with airtight rubberized metal lid and oxygen absorber actually preserves the effectiveness of the product. Dramatic difference vs. other packaging.