Nootropic
Ginkgo biloba
Also known as: Ginkgo, Maidenhair tree, Ginkgo biloba Extract, Ginkgo leaf extract
Ginkgo biloba leaf extract is a traditional herbal supplement standardized for flavonoid glycosides and terpenoids, with clinical evidence supporting modest benefits for cognitive function and peripheral circulation. The extract has been extensively studied, though effect sizes in healthy populations are modest.
Primary uses
- Cerebral circulation
- Memory
- Focus
- Tinnitus
- Cognitive function and memory
- Age-related cognitive decline
- Peripheral circulation and vascular health
- Claudication
How it works
- Improves microcirculation
- Antioxidant flavonoids
- Inhibits platelet aggregation
Dosage
- Typical range
- 120-240 mg daily
- Timing
- Divided doses
- With food
- Optional
- Duration
- 4-6 weeks for effects
- Special populations
- Elderly, circulation concerns
Forms
- Standardized extract
- EGb 761
- Powder· 70/100
- Capsule· 70/100
- Tablet· 70/100
- Liquid extract· 70/100
Safety
Common side effects
- Headache
- GI upset
- Dizziness
Contraindications
- Active bleeding or bleeding disorders
- Upcoming surgery (stop 14 days prior)
- Concurrent use with warfarin or anticoagulants
- Seizure disorders (low-quality extracts may contain ginkgotoxin)
- Pregnancy and breastfeeding
Products containing Ginkgo biloba
Top-scoring supplements in our catalog that list Ginkgo biloba on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
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Known interactions
Evidence notes
Improves brain blood flow
Grade B: Some human trials support key claims; further confirmation needed.
Cited research for Ginkgo biloba
Clinical studies referenced across Formulate guides that mention ginkgo biloba. Each links to the full study page with PubMed source + the guides that cite it.
- Primary literature (2025)Observational study
Impact of Ginkgo biloba drug interactions on bleeding risk and coagulation profiles
- Millery et al. (2015)AMIA Annu Symp Proc
Ginkgo and Warfarin Interaction in a Large Veterans Administration Population
- Bone (2008)Mol Nutr Food Res
Potential interaction of Ginkgo biloba leaf with antiplatelet or anticoagulant drugs: what is the evidence?
- Gardner et al. (2007)Blood Coagul Fibrinolysis
Effect of Ginkgo biloba (EGb 761) and aspirin on platelet aggregation and platelet function analysis among older adults at risk of cardiovascular disease
Ginkgo biloba compared head-to-head
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