1. Ginkgo Flavonoids 24%      Terpene Lactones 6%

2. Ginkgo Flavonoids 24%      Terpene Lactones 6%    Ginkgolic acid 5ppm

3. Ginkgo Flavonoids 24%      Terpene Lactones 6%   Ginkgolic acid 1ppm

4.Water-soluble GBE      Ginkgo Flavonoids 24%    Terpene Lactones 6%    Ginkgolic acid <5ppm or <1ppm

5. European standard GBE    Ginkgo Flavonoids 22-27%   Terpene Lactones 5-7%   G.A+G.B.+G.C. 2.8-3.4%   B.B. 2.6-3.2%Ginkgolic acid<5ppm