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An herb popular in Chinese traditions, ginkgo biloba is used for a variety of health applications, including memory, circulation, antioxidant protection and sexual potency. Ginkgo delivers antioxidants; its leaves feature flavonoid glycosides (myricetin and quercetin) and terpenoids (ginkgolides and bilobalide). Supplemental ginkgo is taken to promote brain health, support memory and enhance concentration. Swanson Premium Ginkgo Biloba Extract features 24% glycosides. Swanson Ultra Delayed-Release Ginkgo dispenses standardized ginkgo biloba throughout the day for sustained benefit.