Ginkgo Biloba Leaf Extract Details Product Name: Ginkgo Biloba Leaf Extract  Herb Source: Ginkgo biloba L  Part Used: Leaf  Active Ingredient: Flavones, Lactones  Specification: 24% Flavones, 6% Lactones, Ginkgolic Acid  Appearance: Yellow Brown Powder  Test Method: HPLC  CAS#: 90045-36-6 What Is Ginkgo Biloba Extract ? The Chinese have been using ginkgo to treat health conditions for thousands of years. Ginkgo …