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Principle Active Constituents

Ginkgo flavones

  • Ginkgolides and bilobalide
  • terpene molecules unique to ginkgo

Ginkgo Biloba extract is standardized to contain 24 percent flavonoid glycosides, as these molecules represent a convenient analytical reference group.

The three major back bone flavonoids include:

  • Quercetin
  • Kaempferol
  • Isorhamnetine

It also contains other flavonoid components such as proanthocyanidins. The ginkgolides and bilobalides account for 6% of Ginkgo Biloba Extract.