When our Ginkgo Biloba formula won the 2003 Vity Award as the number one selling brand in health stores, we were excited, but not shocked. After all, our team of researchers went to tireless lengths to make NOW Ginkgo Biloba the best in the market. Our 50 1 standardized extract guarantees a minimum 24% ginkgoflavonglycosides and is assayed for pesticides, chemicals and residual solvents. This award winning formula has become one of the most popular in promoting optimal circulation, healthy cranial blood flow, free-radical destruction and cellular protection.