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ingestible · for brain fog & poor focus

Ginkgo Biloba (EGb761)

Reviewed by the Nimbera editorial team · Last updated May 2026

A systematic review and meta-analysis by Tan et al. (2015) in the Journal of Alzheimer's Disease analysed nine RCTs involving 2,561 patients and found that standardised EGb761 at 240 mg/day stabilised or slowed cognitive decline at 22-26 weeks, with significant improvements across cognitive and functional measures versus placebo.$15-$35 for a 60-day supply

How to use

Take 120-240 mg of standardised GBE extract (EGb761, 24% flavonol glycosides and 6% terpene lactones) in two divided doses daily with meals. Use for at least 6-8 weeks. The 240 mg/day dose is most supported by evidence.

How it works

Flavonoids and terpenoids in ginkgo increase cerebral blood flow, inhibit platelet-activating factor, and provide antioxidant protection to neurons. Improved microcirculation in the brain enhances oxygen and glucose delivery to neural tissue.

Where to buy

Schwabe Pharma's Tebonin (contains EGb761), Nature's Way Ginkgold, and NOW Ginkgo Biloba are available at health food stores, pharmacies, and Amazon.

Typical cost: $15-$35 for a 60-day supply

Safety notes

Can increase bleeding risk - stop 2 weeks before surgery. Interacts with blood thinners (warfarin, aspirin, clopidogrel). May reduce effectiveness of anticonvulsant medications. Avoid if taking MAOIs. Ginkgo seeds (not the leaf extract) are toxic.

Drug & supplement interactions

  • Always tell your doctor or pharmacist about any supplements you take.
  • Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
  • Herbal remedies can affect how the body absorbs or metabolises drugs.
  • Check drugs.com interactions checker before starting.

Clinical source

Tan et al., Ginkgo biloba for cognitive impairment and dementia: meta-analysis, J Alzheimers Dis, 2015

This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.