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.