to improve brain functioning and memory. Ginkgo biloba drops is a halal & kosher certified product & produced under international gmp regulations.ginkgo biloba is known for its ability to maintain peripheral circulation to the arms, legs, and brain. Numerous scientific studies suggest that ginkgo biloba, is rich in antioxidants and nutrients that are known to improve blood flow to the brainimprove memory, cognitive performance, concentration and mental claritymanage excessive stress and anxiety, promote relaxation, key ingredients: it contains ginkgo biloba extract. Directions for use: take 10 drops twice daily on an empty stomach or half an hour before meal. It can be mixed with drinking water or take straight followed with a glass of juice or water. Please continue for 6-12 months regularly for optimum results.