What is Ginkgo Biloba Extract?
Ginkgo biloba extract is derived from the leaves of the Ginkgo biloba tree, which is native to China and is one of the oldest living tree species in the world. Ginkgo biloba extract is standardized to contain flavone glycosides and terpene lactones, which are known for their antioxidant properties. It is commonly used in dietary supplements and functional foods to support brain health, memory, and healthy blood circulation.
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Benefits of Ginkgo Biloba Extract
Cognitive Function & Memory Support
Ginkgo Biloba Extract is widely used for supporting brain health and cognitive function. It may help improve memory, focus, and mental clarity by enhancing blood circulation to the brain and supporting neurotransmitter activity. It is commonly used in supplements for aging-related cognitive decline and mental fatigue.
Antioxidant Properties
Ginkgo Biloba Extract is rich in flavonoids and terpenoids, which have strong antioxidant effects. These compounds help protect cells from oxidative stress caused by free radicals, supporting overall cellular health and slowing down age-related damage.
Circulatory & Cardiovascular Support
Ginkgo Biloba Extract may help improve blood circulation by promoting blood vessel dilation and reducing blood viscosity. It is often used to support cardiovascular health and peripheral circulation, especially in individuals with poor blood flow or cold extremities.
Eye & Neurological Health Support
Ginkgo Biloba Extract is commonly used to support eye health and neurological function. It may help improve microcirculation in the eyes and nervous system, supporting visual function and reducing symptoms related to age-associated decline.
How Is Ginkgo Biloba Extract Obtained From Ginkgo Leaf?
Ginkgo Biloba Extract is produced through a controlled extraction process using dried Ginkgo biloba leaves. The process is designed to concentrate key active compounds, mainly flavone glycosides and terpene lactones, while removing unwanted impurities to achieve a standardized and high-purity botanical extract.
Raw Material Selection
High-quality Ginkgo biloba leaves are carefully selected, typically harvested at the appropriate maturity stage to ensure optimal levels of flavonoids and terpene lactones. Leaves are inspected for purity, absence of contaminants, and compliance with raw material specifications.
Cleaning and Drying
Fresh leaves are thoroughly cleaned to remove dust, impurities, and foreign matter. They are then dried under controlled temperature conditions to preserve active constituents and prevent enzymatic degradation.
Size Reduction (Grinding)
The dried leaves are milled into a fine powder to increase surface area, which improves extraction efficiency and ensures uniform contact with the extraction solvent.
Solvent Extraction
The powdered leaf material is extracted using a hydroalcoholic solution (typically ethanol-water). This step selectively extracts flavone glycosides and terpene lactones under controlled temperature and time conditions to maximize yield and stability.
Filtration and Concentration
The crude extract is filtered to remove plant residues, then concentrated under reduced pressure to remove solvents. This process produces a dense extract rich in active compounds.
Purification and Standardization
The concentrated extract undergoes advanced purification steps to reduce ginkgolic acids to trace levels (typically <5 ppm) and is then standardized to defined active contents, such as 24% flavone glycosides and 6% terpene lactones, ensuring consistent quality and efficacy.
Types of Ginkgo Biloba Extract
flavone glycosides
This type of extract is enriched specifically in flavone glycosides, one of the key antioxidant components in Ginkgo biloba. It is often standardized to a certain percentage (such as 24% or higher purity grades). It is widely used in products targeting antioxidant protection, anti-aging, and brain health support.
terpene lactones
This extract focuses on the active terpene lactones, including ginkgolides and bilobalide, which are responsible for many of the neurological and circulation-related effects. It is often used in formulations targeting neuroprotection, tinnitus relief, and vascular health support.
24% flavone glycosides & 6% terpene lactones ((EGb 761 type))
Ginkgo biloba standardized extract is the most widely used and clinically researched form in the global market. The most famous example is EGb 761, which is standardized to 24% flavone glycosides and 6% terpene lactones, while controlling ginkgolic acids to very low levels. It is commonly used for memory support, cognitive health, and blood circulation improvement, especially in Europe and pharmaceutical applications.
Ginkgo leaf powder
Ginkgo leaf powder is made by drying and grinding Ginkgo leaves directly. It contains the full spectrum of natural compounds but with lower concentration of active ingredients compared to standardized extracts. It is commonly used in herbal tea, functional foods, and basic supplement formulations.
The predominant components of commercial Ginkgo biloba extract are flavone glycosides and terpene lactones, which are considered the main active constituents responsible for its biological activity. Flavone glycosides typically represent 22–27% of standardized extracts and include compounds such as quercetin, kaempferol, and isorhamnetin glycosides. Terpene lactones account for about 5–7% and mainly consist of ginkgolides A, B, C, and bilobalide. In addition, small amounts of proanthocyanidins, organic acids, and trace minerals are present (generally 1–5%), while the remaining portion is composed of carbohydrates, proteins, and residual plant-derived materials. Standardized extracts such as EGb 761 are commonly used in commercial applications to ensure consistent composition and efficacy.
Application of Ginkgo Biloba Extract
1.Cognitive health support
Ginkgo biloba extract is widely used in dietary supplements aimed at supporting brain function. It helps promote memory, focus, and overall cognitive performance by supporting healthy blood circulation and antioxidant activity in the brain.
2.Circulatory system support
Ginkgo extract is commonly used in formulations designed to support healthy blood flow and microcirculation. It may help maintain vascular elasticity and support oxygen and nutrient delivery throughout the body, especially in the brain and extremities.
3.Antioxidant and anti-aging formulations
Due to its rich flavonoid and terpene lactone content, Ginkgo biloba extract is often included in antioxidant products. It helps combat oxidative stress and is widely used in anti-aging supplements and functional foods.
4.Eye and ear health products
Ginkgo extract is also applied in supplements targeting eye and ear wellness. It is commonly used to support visual function and help maintain normal auditory performance, particularly in age-related conditions.
What are the Health Benefits of Using Ginkgo Biloba Extract?
1. The primary benefit of Ginkgo biloba extract is its role in supporting cognitive function and memory. Standardized Ginkgo extracts (such as EGb 761) are widely used in dietary supplements to help maintain mental clarity, focus, and healthy brain performance, particularly in aging populations. Its flavone glycosides and terpene lactones contribute to antioxidant protection and support healthy neuronal function.
2. Evidence suggests that Ginkgo biloba extract helps support healthy blood circulation and microvascular flow. By promoting vasodilation and improving blood rheology, it may enhance oxygen and nutrient delivery to tissues, especially in the brain and peripheral extremities. This circulatory support is often associated with improved mental alertness and reduced feelings of fatigue.
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