Herbal Extract
Ginkgo Biloba
A traditional herbal extract used to support memory, circulation, and cognitive function.
KÖGN Health grades Ginkgo Biloba as B+ (Moderate evidence) and rates it 3.9 out of 5.
Last reviewed · June 2026
Primary effects
- Improved memory
- Increased blood flow
- Cognitive support
How it works
Enhances cerebral blood flow and provides antioxidant support to brain cells.
Overview
Ginkgo Biloba has been widely studied for its effects on cognitive function, particularly in ageing populations. Its primary mechanism involves improving blood flow to the brain, which may enhance oxygen and nutrient delivery. While results in healthy individuals are mixed, it remains a popular option for long-term cognitive support. Effects are typically subtle and build over time rather than providing immediate enhancement.
The evidence
Mixed. Some benefit appears in older adults and clinical settings; results in healthy younger adults are inconsistent and generally modest. We grade it honestly rather than generously.
Dose
120–240 mg/day of a standardised extract (e.g. 24% flavone glycosides).
Timing
Chronic — typically assessed over several weeks.
Safety
Has blood-thinning potential: avoid combining with anticoagulant or antiplatelet medication, and pause before surgery. Speak to a clinician first if relevant.
Related ingredients
Graded entries that target the same cognitive goals.
Categories
Educational information, not medical advice. The evidence grade is KÖGN’s editorial assessment of published research, not a health claim. Speak to a qualified clinician before changing what you take.