Ginkgo Biloba

Ancient tree extract that improves circulation, cognitive function, memory, and provides antioxidant protection

Scientific nameGinkgo biloba FormulaComplex flavonoids and terpenoids Molecular weightVariable bioactive compounds g/mol CASVarious natural compounds

25 absorption score

7 safety / 10

25 USD per month

5 documented interactions

Check it against something

Evidence level B

Ginkgo Biloba with:

78 out of 100

Works better together Compatible. Timing differs, so follow each supplement's own window.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Improved circulation and blood flow

Enhances peripheral and cerebral circulation

Flavonoids and terpenoids improve vascular function and blood flow Evidence A-grade 4-8 weeks

Enhanced cognitive function and memory

Improves memory, focus, and cognitive performance

Increased brain blood flow and neuroprotective effects Evidence B-grade 6-12 weeks

Antioxidant and neuroprotection

Protects brain cells from oxidative damage

Flavonoids neutralize free radicals and reduce inflammation Evidence B-grade 4-8 weeks

Reduced symptoms of claudication

Improves walking distance in peripheral artery disease

Enhanced blood flow to extremities Evidence B-grade 8-16 weeks

Tinnitus and vertigo relief

May reduce ringing in ears and dizziness

Improved inner ear circulation and vestibular function Evidence C-grade 6-12 weeks

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Vitamin B12 (Cyanocobalamin) Energy & nerve support 250-1000 mcg A 70% Coenzyme Q10 (CoQ10) Heart health & cellular energy 100-200mg A 10% Fish Oil (EPA/DHA) Heart & brain health 1-2g EPA/DHA A 85% L-Theanine Calm focus & stress relief 100-400mg B 90% Psyllium Husk Digestive health & cholesterol support 5-15g A 95% Vitamin B8 (Inositol) Mental health & PCOS support 2-18g (condition dependent) B 95%

Every pair we checked

12 combinations scored by the engine

Ginkgo Biloba + Caffeine No documented interaction either way No known interaction 70

Ginkgo Biloba + Creatine Monohydrate No documented interaction either way No known interaction 70

Ginkgo Biloba + Calcium Carbonate No documented interaction either way No known interaction 70

Ginkgo Biloba + Whey Protein No documented interaction either way No known interaction 70

Ginkgo Biloba + Lactase No documented interaction either way No known interaction 70

Ginkgo Biloba + Bovine Collagen No documented interaction either way No known interaction 70

Ginkgo Biloba + DHA No documented interaction either way No known interaction 70

Ginkgo Biloba + Turmeric No documented interaction either way No known interaction 70

Ginkgo Biloba + Fish Oil (EPA/DHA) No documented interaction either way No known interaction 70

Ginkgo Biloba + Bacopa Monnieri Enhanced cognitive and memory benefits Works better together 75

Ginkgo Biloba + Vitamin D3 Enhanced antioxidant and vascular protection Works better together 78

Ginkgo Biloba + Omega-3 + Curcumin + Vitamin D Triple Anti-Inflammatory Formula Enhanced circulation and brain health Works better together 78

Dosage

With meals

Daily120-240mg

Circulation support120-240mg daily

Cognitive enhancement120-240mg daily

Claudication treatment120-240mg daily

Antioxidant protection80-160mg daily

Before you take it

VeganYes

When to expect it

First Effects4-6 weeks for circulation and initial cognitive benefits

Peak Benefits8-16 weeks for sustained cognitive and vascular benefits

Deficiency DevelopmentReturn to baseline circulation and cognitive function

Toxicity OnsetRare with standardized extracts, risk with crude preparations

How to measure it

$100-200

MarkerBleeding time, platelet function, or circulation markers

OptimalImproved circulation markers, normal clotting parameters

Deficient belowNot applicable for supplement

FrequencyMonitor bleeding parameters if using with blood thinners

What people actually reported to the FDA

CAERS, 118 reports naming it as the suspect

Most reported effects

Dizziness 11

Blood pressure increased 10

Headache 9

Dyspnoea 9

Cerebrovascular accident 8

Excluded from the list above: choking (8). Those are people struggling with the tablet itself, not with the compound.

Named as the suspect 118 reports of 158 that mention it at all

Serious outcome 81% hospitalisation, emergency room or worse

Other Serious or Important Medical Event78

Hospitalization47

Visited a Health Care Provider39

Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →

What actually reaches you

The label counts the carrier, your body does not

Absorption Low 25 of 100 · poorly absorbed relative to other forms

Delivered daily 45 mg

Cost per 100 mg delivered $1.85 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented

Vitamin E

Enhanced antioxidant and vascular protection

Both provide complementary antioxidant effects · level B

Omega 3 Fatty Acids

Enhanced circulation and brain health

Both support vascular function and brain health · level B

Bacopa Monnieri

Enhanced cognitive and memory benefits

Complementary cognitive enhancement pathways · level C

What not to take with Ginkgo Biloba

2 documented

Blood Thinning Medications

May enhance anticoagulant effects dangerously

Ginkgo inhibits platelet aggregation · major significance

Seizure Medications

May reduce effectiveness of seizure medications

Potential proconvulsant effects with contaminated products · moderate significance

Medication interactions

Discuss these with a pharmacist before combining

warfarin-blood-thinners Major

May significantly increase bleeding risk

What to do: Avoid combination or monitor INR closely

anticonvulsants Moderate

May reduce seizure threshold

What to do: Use only standardized extracts, monitor seizure control

thiazide-diuretics Minor

May enhance blood pressure lowering

What to do: Monitor blood pressure

Available forms

bioavailability compared

EGb 761 (Standardized Extract) 80

24% Flavonoids / 6% Terpenoids Extract 75

Whole Leaf Powder 50

EGb 761 (Standardized Extract): Most researched form, Standardized potency, Clinical backing, Consistent effects

24% Flavonoids / 6% Terpenoids Extract: Standardized ratios, Good research, Widely available, Quality controlled

Whole Leaf Powder: Lower cost, Complete spectrum, Traditional use, Natural

Food sources

before you supplement

Ginkgo nuts (cooked) Edible when properly prepared · 40

Ginkgo standardized extracts 120-240mg per capsule · 75-80

Ginkgo leaf tea Lower concentration, potential toxins · 30

Raw ginkgo leaves/seeds Not recommended - contains toxins · Unsafe

Too little

deficiency signs

Not essential - but symptoms addressed by ginkgo:
Poor circulation and cold extremities
Cognitive decline and memory problems
Claudication and walking difficulties
Tinnitus and balance problems
Oxidative stress and vascular dysfunction
Poor concentration and mental fatigue

Too much

toxicity signs

Generally safe with standardized extracts:
Increased bleeding risk with blood thinners
Headaches and digestive upset
Seizures with contaminated or crude preparations
Allergic skin reactions in sensitive individuals

Who benefits most

circulation-vascular-health

Excellent for improving peripheral and cerebral circulation

120-240mg daily

cognitive-decline-memory

May help with age-related cognitive decline and memory

120-240mg daily

intermittent-claudication

Improves walking distance in peripheral artery disease

120-240mg daily

tinnitus-vertigo

May help reduce ear ringing and dizziness

120-240mg daily

antioxidant-brain-protection

Provides neuroprotective antioxidant effects

120-240mg daily

Where to buy it

compare forms first

Look for Ginkgo Biloba at 120-240mg per serving. The form that matters here is EGb 761 (Standardized Extract).

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How it works

Flavonoids improve vascular tone and endothelial function
Terpenoids (ginkgolides) inhibit platelet aggregation
Increases nitric oxide production for vasodilation
Provides antioxidant protection against lipid peroxidation
Enhances neurotransmitter function and synaptic transmission
Reduces inflammation in vascular and neural tissues

Key findings

what the evidence supports

Good evidence for circulation improvement and claudication
Mixed evidence for cognitive enhancement in healthy individuals
Generally safe with standardized extracts
Important to avoid crude preparations and monitor bleeding risk

Sources: NIH Examine.com · data reviewed 2026-08-02

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of Ginkgo Biloba?

Documented effects: Improved circulation and blood flow; Enhanced cognitive function and memory; Antioxidant and neuroprotection; Reduced symptoms of claudication. Enhances peripheral and cerebral circulation

How much Ginkgo Biloba should you take per day?

The common daily range is 120-240mg. By goal — circulation support: 120-240mg daily; cognitive enhancement: 120-240mg daily; claudication treatment: 120-240mg daily; antioxidant protection: 80-160mg daily.

When is the best time to take Ginkgo Biloba?

With meals. First effects are typically reported within 4-6 weeks for circulation and initial cognitive benefits.

What are the side effects of Ginkgo Biloba?

At excessive doses: Generally safe with standardized extracts:, Increased bleeding risk with blood thinners, Headaches and digestive upset, Seizures with contaminated or crude preparations, Allergic skin reactions in sensitive individuals. Safety rating at normal doses is 7 out of 10.

What should you not take with Ginkgo Biloba?

Separate it from Blood Thinning Medications, Seizure Medications by two to four hours. May enhance anticoagulant effects dangerously

Does Ginkgo Biloba interact with medications?

Documented interactions with warfarin-blood-thinners, anticonvulsants, thiazide-diuretics. Discuss these with a pharmacist before combining.

How do you know if you need Ginkgo Biloba?

The marker is Bleeding time, platelet function, or circulation markers, optimal range Improved circulation markers, normal clotting parameters. Common deficiency signs: Not essential - but symptoms addressed by ginkgo:, Poor circulation and cold extremities, Cognitive decline and memory problems, Claudication and walking difficulties.

Taken for

52 Brain & Focus

Caffeine · DHA · Fish Oil (EPA/DHA)

52 Heart

Fish Oil (EPA/DHA) · EPA · Olive Oil Extract