Ginkgo biloba p. e. With anti-oxidation,scaveging free radical and anti-platelet-actvating factor in pharmcological effects .Ginkgo biloba extrct 24/6 (low acid)Ginkgo flaconoidsc ≥ 24%Peak ratio of Quercetin and kaempferol: 0.8-1.5Total lactones of ginkgo≥ 6%Ginkgo Acid 1PPM