Ginkgo 2:1 contains Ginkgo leaf which is used to support memory and cognition. Ginkgo has been used in herbal preparations to: Support normal memory function Promote mental clarity, concentration and cognitive performance Support healthy peripheral nerve function Maintain healthy eyes and support the body as it ages* Dilute 1 mL (approx. 50 drops) in water or juice 3 times per day, or as directed. Serving Size: 1 mL (approx. 50 drops) Amount Per Serving Calories ... 3 Ginkgo leaf 2:1 extract ... 1mL from Ginkgo biloba leaf 2.0 g Containing ginkgo flavonglycosides 9.6 mg Other Ingredients: Purified water and 50% alcohol. Caution: Not to be used during pregnancy and lactation unless otherwise directed by a qualified health care professional.