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Ingredient guide

Ginkgo biloba: decades of research, mixed results, one important warning

Ginkgo is one of the most researched botanicals in the world — and one of the most honestly described as “promising but unproven”. Here's what the studies found, the doses they used, and the safety warning every buyer should read.

Researched and written by the TheNeuroBoost editorial team · checked against the product label and the supplier's own terms

Facts verified 14 October 2026

Key points

  • Ginkgo extracts have been studied for decades, typically at 120–240 mg daily.
  • Results in healthy adults are mixed; the strongest research context is age-related cognitive complaints.
  • The meaningful standardisation is 24% flavone glycosides and 6% terpene lactones.
  • Ginkgo interacts with blood-thinning medication and must be stopped before surgery.

What ginkgo is

Ginkgo biloba is a tree species unchanged for millions of years; supplements use concentrated extracts of its fan-shaped leaves. The extracts used in research — often called EGb-type extracts — are standardised to 24% flavone glycosides and 6% terpene lactones, the compounds believed to drive any effect. A product that doesn't state these figures isn't comparable with the research.

What the research found

The honest summary is “mixed”. Large trials in healthy older adults have generally found little or no benefit for preventing cognitive decline, while some studies in people with existing mild cognitive complaints have found modest improvements in memory and attention. For a healthy adult hoping for a sharper mind, ginkgo is one of the less certain bets among supplement ingredients — which is exactly why dose, standardisation and honest marketing matter when choosing a product that contains it.

The dose used in studies

Most trials use 120–240 mg per day of standardised extract, often split into two doses, over weeks to months. As with bacopa, nothing about ginkgo is fast — trials run for 12 weeks or longer before judging effects.

The interaction every buyer must know

Ginkgo can increase the effect of anticoagulant and antiplatelet medicines (such as warfarin or daily aspirin) and raise bleeding risk. Do not combine them without medical advice, and stop ginkgo-containing supplements before planned surgery. Responsible labels — including Neuro Boost's — say exactly this; if a ginkgo product's label doesn't mention it, buy from someone else.

Other cautions

Ginkgo is not recommended during pregnancy or breastfeeding. There are theoretical concerns for people with epilepsy (seizure threshold) and for those on certain antidepressants — again, a pharmacist can check your specific medicines in a minute.

How much ginkgo is in Neuro Boost?

Neuro Boost provides 120 mg of ginkgo leaf extract per daily serving, standardised to 24% flavone glycosides (28.8 mg) and 6% terpene lactones (7.2 mg) — the EGb-type standardisation, at the lower end of the studied 120–240 mg range. The label carries the full set of ginkgo-related warnings, which we list verbatim on our safety page. See how every dose compares with the research on our ingredients page, and our overall verdict in the Neuro Boost review. (We earn a commission if you buy through our links.)

Questions people ask about ginkgo

Does ginkgo really improve memory?

The fairest summary is “unproven in healthy people”. Large, well-run trials in healthy older adults have generally found little or no benefit for preventing cognitive decline, while studies in people with existing mild complaints have sometimes found modest improvements. If you try it, do so with modest expectations and a proper standardised extract.

How long does ginkgo take to work?

Trials run for 12 weeks or more before judging effects, so any personal trial should allow at least that. A ginkgo product promising same-week results is describing marketing, not research.

Can I take ginkgo every day?

Daily use at 120–240 mg of standardised extract is the studied pattern and is well tolerated by most healthy adults — but the interaction list is real: blood thinners, planned surgery, pregnancy, epilepsy and certain antidepressants all appear on responsible labels. A pharmacist can check your medicines against it in a minute.

Ginkgo is not a treatment

Ginkgo supplements are foods, not medicines. They have never been shown to treat, prevent or slow dementia. Memory problems that persist or worsen need a GP's assessment.

See the full Neuro Boost formula

Ginkgo is one of nine labelled actives. Current bundles are on the supplier's official page.

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