Ginkgo Leaf Extract
Ginkgo Leaf Extract
Snapshot
Ginkgo leaf extract is a standardized botanical supplement from the leaves of Ginkgo biloba, rich in flavonoid glycosides and terpenoids, designed to support cognitive function, circulation, and antioxidant protection.
What is Ginkgo Leaf Extract?
Ginkgo leaf extract is produced from the dried leaves of the maidenhair tree, standardized to contain 24% flavonoid glycosides (quercetin, kaempferol, isorhamnetin) and 6% terpenoids (ginkgolides, bilobalide), ensuring consistent bioactivity.
Where It Comes From
Leaves are harvested in autumn, then dried and subjected to a solvent extraction process (typically ethanol or acetone) that concentrates the key active constituents into powdered extracts, capsules, or tablets.
Key Nutrients & Compounds
The extract delivers flavonoid glycosides, known for their antioxidant and anti‑inflammatory properties, and terpenoids (ginkgolides A, B, C and bilobalide), which support microcirculation, neurotransmission, and mitochondrial function.
Health Benefits
Ginkgo leaf extract enhances cerebral and peripheral blood flow, supporting memory, focus, and mental clarity. It protects vascular endothelium and neurons from oxidative damage, and may help reduce symptoms of intermittent claudication and tinnitus.
Recommended Dosage
Standardized extracts are typically dosed at 120–240 mg per day, divided into two or three doses. A common protocol is 120 mg twice daily for cognitive and circulatory support.
How to Use It
Take ginkgo leaf extract capsules or tablets with meals to minimize gastrointestinal discomfort and enhance absorption. Consistent use over at least 4–6 weeks is recommended for full effect.
Who Should Use It?
Ideal for anyone seeking to support brain health, memory, and healthy circulation—particularly older adults or individuals experiencing mild cognitive decline or vascular insufficiency.
Possible Interactions or Cautions
May potentiate anticoagulant or antiplatelet medications, increasing bleeding risk. Some users report mild headaches, dizziness, or upset stomach. Avoid use before surgery and consult a healthcare provider if pregnant or breastfeeding.
Final Thoughts
Ginkgo leaf extract is a well‑studied botanical that offers robust neurovascular and antioxidant benefits. When standardized to pharmaco‑peia criteria and used consistently, it can help maintain cognitive performance and vascular health.
Scientific Studies
Weinmann, S., Roll, S., Schwarzbach, C., Vauth, C., & Willich, S. N. (2010). Effects of Ginkgo biloba in dementia: systematic review and meta‑analysis. BMC Geriatrics, 10, 14.
https://doi.org/10.1186/1471-2318-10-14
Diamond, B. J., Shiflett, S. C., Feiwel, N., et al. (2000). Ginkgo biloba extract: mechanisms and clinical indications. Archives of Physical Medicine and Rehabilitation, 81(5), 668–678.
https://doi.org/10.1053/apmr.2000.9313
Ma, Z., et al. (2015). Ginkgo biloba extract EGb761 enhances cognitive function and modulates cholinergic system in aged mice. Phytomedicine, 22(9), 911–917.
https://doi.org/10.1016/j.phymed.2015.06.004