Since 1972 Supports Healthy Circulation Made from 500 mg Ginkgo Leaves Discover Nature's Answer Gluten-Free Herbal Supplement Kosher Parve Bio-Chelated Cold Extraction ProcessOur extracts are produced using our cold Bio-Chelated proprietary extraction process, yielding a Holistically Balanced Advanced Botanical Fingerprint extract in the same synergistic ratios as in the plant.