Ginkgo Biloba leaves have been recommended by Chinese and Japanese herbalists for more than 5000 years. Available in superior extended delivery, NaturesPlus Herbal Actives Ginkgo Biloba Leafextract is uniformly standardized to a minimum of 24% 28.8 mg ginkgo flavone-glycosides, 6% 7.2 mg terpene lactones. Each tablet, providing the greatest concentration of active botanical principles, maximizes the synergistic benefits of the whole leaf, which naturally contains bioflavonoids, isoginkgetin and ginkgolide A,B,C,M and J.