Ginkgo Biloba leaf Extract 1,Natural product 2,DMF 3,GAP 4,GMP, NSF, ... USP34 standards3,Pure natural product and 100% free additive.4, Professional API supplier [Product name] Ginkgo Biloba leaf Extract[Botanical source]Dried leaves of Ginkgo biloba ... .8% Peak area ratio Q:K 0.8-1.5 Herbal extract USP34 Ginkgo Biloba Extract