What Is Ginkgo Biloba Used For? Benefits & Uses Guide
Discover what Ginkgo Biloba is used for — from memory and focus to circulation. Learn about its active compounds, evidence-based benefits, and traditional uses.
What Is Ginkgo Biloba Used For?
Ginkgo Biloba L. is the oldest genus among existing seed plants — a "living fossil" traceable back more than 200 million years to the Permian period. It is the sole surviving member of the family Ginkgoaceae, a deciduous tree native to eastern China that can reach 20–40 meters in height. Its fan-shaped, bilobed leaves resemble the leaflets of maidenhair ferns, earning it the common name "maidenhair tree."
The medicinal use of Ginkgo Biloba is recorded as far back as 2800 BC in Chinese writings. Preparations of its leaves have been used as remedies in China for more than 5,000 years, since the earliest origin of Chinese herbal medicine. Ancient healers employed the tree's seeds and leaves for respiratory concerns like asthma and persistent coughs, as well as for digestive issues and conditions related to bladder health.
So what is Ginkgo Biloba used for today? Modern interest centers on its potential to support memory, circulation, and focus and concentration. Phytopharmaceutical extracts from ginkgo leaves have been applied to support cerebrovascular and peripheral vascular health in countries such as Germany, France, Japan, and Korea since the 1960s. Today, ginkgo leaf extracts are among the most commonly used herbal medicines and the subject of extensive scientific study.
Because of the wide variation of ginkgo products on the market, it is important that the Ginkgo Biloba you use is standardized so you are sure to get maximum quality and potency. This standardized Ginkgo Biloba extract is made under strict European quality standards, which are comparable to over-the-counter drug standards in the United States.
The Science Behind Ginkgo Biloba's Key Mechanisms
Understanding what is Ginkgo Biloba used for requires examining its active compounds and their mechanisms. The standardized extract provides optimal levels of naturally occurring flavonglycosides and terpene lactones — two pharmacologically defining compound classes responsible for ginkgo's biological activity.
Antioxidant and Free Radical Scavenging
The flavonol glycosides in ginkgo are potent free-radical scavengers. This antioxidant activity serves as a very powerful defense mechanism, especially important for the brain, retina, and cardiovascular system. It helps protect neuronal and cardiovascular cells from reactive oxygen species (ROS)-mediated cell damage.
Platelet-Activating Factor (PAF) Antagonism
Ginkgolide B is the most potent known naturally occurring inhibitor of platelet-activating factor. This mechanism supports ginkgo's role in promoting healthy blood flow and circulation. The ginkgolides reduce tissue ischemia through vasoregulation, PAF antagonism, and prevention of membrane damage caused by free radicals.
Vascular and Hemodynamic Support
Research suggests that Ginkgo Biloba improves perfusion in different vascular beds without significantly affecting blood pressure and heart rate. It displays vasorelaxant activities and collectively impacts cardiovascular physiology, supporting hemodynamics and organ perfusion.
Neurotransmitter Modulation and Neuroprotection
Studies suggest that chronic treatment with ginkgo extract increases dopaminergic transmission in the prefrontal cortex — the brain region critical for executive function, attention, and working memory. The increase in dopamine levels was mostly caused by the flavonol glycosides and ginkgolide fractions. Additionally, ingredients of ginkgo leaves have been shown to cross the blood-brain barrier and exert neuroprotective effects through multiple pathways, including protection from ischemia-related and inflammation-induced injuries.
Key Ingredients
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Who May Benefit from Ginkgo Biloba
Understanding what is Ginkgo Biloba used for also means identifying who may find it most supportive. Based on the available research, several groups may be particularly interested in Ginkgo Biloba supplementation.
Adults seeking cognitive support: Research suggests Ginkgo Biloba may support memory, focus, and concentration, particularly in individuals experiencing age-related cognitive changes. Studies show improvements in attention, working memory, and processing speed in healthy adults and those with mild cognitive concerns.
Those looking to support healthy circulation: Ginkgo Biloba has robust clinical evidence for promoting blood flow across multiple vascular beds. It has historically been studied for peripheral vascular health, with nine double-blind RCTs demonstrating improvements in walking distance and blood flow measurements.
People seeking antioxidant support: The flavonol glycosides in ginkgo serve as powerful free-radical scavengers, which may be especially important for supporting the health of the brain, retina, and cardiovascular system.
Important considerations: Ginkgo may be unsafe for use during pregnancy, as it might cause early labor or extra bleeding during delivery if used near that time. Little is known about whether it's safe to use ginkgo while breastfeeding. Those taking anticoagulant drugs such as warfarin should be aware that taking Ginkgo Biloba with warfarin is associated with increased risk for major bleeding events. Additionally, concomitant use of Ginkgo Biloba preparations and efavirenz is not recommended.
This product is gluten free, dairy free, soy free, and grain free.
How to Take Ginkgo Biloba
Take one (1) vegetarian capsule, two (2) times daily with meals. Each capsule contains 120 mg of standardized Ginkgo Biloba leaf extract in a 50:1 concentrate.
The extract has been standardized under strict European guidelines to ensure maximum quality and potency, providing optimal levels of naturally occurring flavonglycosides and terpene lactones. The European Pharmacopoeia requires that standardized ginkgo extract contains 22.0%–27.0% flavonol glycosides and 5.4%–6.6% terpene lactones, with less than 5 parts per million of ginkgolic acids — the compounds responsible for potential adverse effects in non-standardized preparations.
Product quality matters significantly with Ginkgo Biloba. Even two extracts complying with the same pharmacopoeia guideline can vary in composition. For example, a range of 22%–27% flavone glycosides means one extract could contain almost 23% more of that compound class than another. This variability has important implications for the reliability of dosing across non-standardized preparations.
Written by Greg Howlett
Frequently asked questions
What is Ginkgo Biloba used for in terms of memory and cognitive function?
Research suggests that standardized Ginkgo Biloba extract may support memory, attention, and processing speed. A 2020 meta-analysis of 7 RCTs involving 939 patients with Alzheimer's disease found that those given ginkgo extract had some improvement in cognitive function. An overview of ten systematic reviews found improvements in cognition, neuropsychiatric symptoms, and daily activities, with effects being dose-dependent. However, the large GEM study (n=3,069) found it was not effective in reducing dementia incidence in elderly individuals with normal cognition. The evidence is most supportive for individuals with existing mild cognitive impairment rather than for prevention in healthy older adults.
How does Ginkgo Biloba support circulation?
Ginkgo Biloba acts to increase blood flow throughout the body through multiple mechanisms: vasorelaxation via nitric oxide and prostanoid release, platelet-activating factor (PAF) receptor antagonism by ginkgolides, and improvements in blood rheology and microcirculation. Multiple RCTs in coronary artery disease patients and healthy elderly adults demonstrate increased blood flow and improved endothelium-dependent vasodilation. Nine double-blind RCTs in peripheral arterial insufficiency showed significantly increased pain-free and maximum walking distances alongside measurable blood-flow improvements.
What are the active compounds in Ginkgo Biloba extract?
The two pharmacologically defining compound classes are flavonol glycosides and terpene trilactones. The standardized extract contains 24% flavonol glycosides (mostly glycosides of quercetin, kaempferol, and isorhamnetin), which are potent free-radical scavengers. The terpene trilactones (6% of the extract) include ginkgolides A, B, C, J, and M, and the sesquiterpene bilobalide. Ginkgolide B is the most potent known naturally occurring inhibitor of platelet-activating factor. These terpene compounds are bioavailable by up to 70–80%, allowing them to reach the central nervous system.
Is Ginkgo Biloba safe, and are there any interactions to be aware of?
In general, Ginkgo Biloba is safe and well-tolerated. In systematic review data, overall adverse events and serious adverse events were at the same level as placebo. Common mild adverse effects include gastrointestinal upset, headaches, and dizziness. However, taking ginkgo with warfarin is associated with increased risk for major bleeding events. Concomitant use with efavirenz is not recommended. Ginkgo may be unsafe during pregnancy, as it might cause early labor or extra bleeding during delivery. Additionally, fresh or raw ginkgo seeds are toxic and should not be consumed — this is a distinct hazard from ginkgo leaf extract supplements.
Why does standardization matter for Ginkgo Biloba supplements?
Because of the wide variation of ginkgo products on the market, standardization ensures you get maximum quality and potency. The European Pharmacopoeia requires that standardized extract contains 22.0%–27.0% flavonol glycosides, 5.4%–6.6% terpene lactones, and less than 5 parts per million of ginkgolic acids (the compounds responsible for potential toxic effects). Even two extracts meeting the same guidelines can vary significantly — one could contain almost 23% more of a compound class than another. This product is made under strict European quality standards comparable to over-the-counter drug standards in the United States.
What other areas has Ginkgo Biloba been studied for beyond memory and circulation?
Research suggests Ginkgo Biloba may also support several other areas. There is evidence of efficacy for standardized extract EGb 761 in tinnitus from multiple trials, with one RCT showing it was similarly effective to pentoxifylline for reducing tinnitus loudness and annoyance. A double-blind, placebo-controlled study found it may help support a calm mood when taken at higher daily amounts. A double-blind, placebo-controlled RCT found that standardized ginkgo extract reduced Raynaud's attacks per week by 56% versus 27% for placebo. It has also been studied for its potential to support neuroplasticity through modulation of BDNF and neuroplasticity pathways.
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