What is Ginkgo Biloba Extract 20:1?
Ginkgo Biloba Extract 20:1 is a standardized herbal extract (20:1) obtained from the Ginkgo biloba plant. It is used as a raw material in dietary supplement production.
Product Properties
- Part used: Leaf
- Standardization: 20:1
- Solubility: Water-soluble
| Analysis | Value |
|---|---|
| Moisture | ≤5.0 % |
| Total Heavy Metals | ≤10 ppm |
| E. Coli | Negative in 10 g |
| Salmonella | Negative in 25 g |
What is Ginkgo Biloba Extract 20:1 Used For? What is its Purpose?
What is Ginkgo Biloba Extract 20:1 used for? The Maidenhair Tree (Ginkgo biloba) is a standardized herbal raw material used in dietary supplements for memory, concentration, and circulation support due to its content of flavonoid glycosides and terpene lactones (ginkgolides, bilobalide). With its standardized 20:1 content, standardized leaf extract (capsules, tablets, drops), teas, and other formulations provide a consistent source of active ingredients.
Ginkgo Biloba Extract 20:1 Benefits and Main Uses
- Memory and concentration: Standardized Ginkgo leaf extract is used for the symptomatic treatment of memory and concentration problems associated with mild cognitive impairment and dementia.
- Cerebral circulation: According to EMA/HMPC evaluations, it is used for symptomatic support in symptoms of cerebral insufficiency (dizziness, tinnitus, headache).
- Tinnitus: It has been reported that EGb 761 extract contributes to reducing the severity of tinnitus in patients with dementia and tinnitus (moderate evidence).
- Peripheral circulation: Traditionally used in circulatory disorders such as intermittent claudication; clinical evidence is mixed and the effect is modest (limited evidence).
Mechanism of Action and Active Components
Flavonoid glycosides and terpene lactones in Ginkgo leaves exert their effects by improving blood flow and microcirculation and protecting neural tissues through antioxidant activity.
Forms of Use (Tablets, Capsules, Powder)
The powder form can be used in tablet, capsule, powder mix/sachet, and (being water-soluble) liquid/syrup formulations.
Positive Plant List Check
Ginkgo biloba is included among the permitted (positive) plants under the Turkish Food Codex dietary supplement regulations. The permitted/used part: Leaf.
Usage Rate in Dietary Supplements
According to the Restricted Substances List for Dietary Supplements, a daily usage limit of 150mg/day applies to this component/extract.
Storage, Shelf Life, and Re-test
Store in a cool, dry, and protected from light environment. The recommended re-test period is generally 3 years; it may vary by manufacturer. The CoA document of the relevant batch shall be taken as the basis for the exact date.
Technical Documents and Supply — Asuka Kimya
You can contact Asuka Kimya for SDS, TDS, CoA, and supply conditions for Ginkgo Biloba Extract 20:1.
References
The usage information on this page is compiled from official herbal monographs and scientific literature (e.g., EMA/HMPC, NIH/NCCIH, Cochrane, EFSA). The product is a dietary supplement raw material and is not intended for the diagnosis or treatment of diseases.

