Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
Certified quality standards on request:
Available
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Estimated delivery time: 22-JUL-2026 - 26-JUL-2026
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Ingredients (1223/2009) Cosmetics Regulation
Ingredients (1223/2009) Cosmetics Regulation
All variants have cosmetic compliance:
- Variant with Pentylene Glycol: Aqua (Water), Pentylene Glycol, Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
Composition (FDA): Water (A (>50 %)), Extract (B (25-50 %)), Glycol (C (10-25 %)) - Variant with Propylene Glycol: Aqua (Water), Propylene Glycol, Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
Composition (FDA): Water (B (25-50 %)), Glycol (B (25-50 %)), Extract (B (25-50 %)) - Variant with glycerin: Glycerin, Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
Composition (FDA): Glycol (A (>50 %)), extract (B (25-50 %)) - Variant with jojoba oil: Simmondsia Chinensis (Jojoba) Seed Oil, Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
Composition (FDA): Oil (A (>50 %)), Extract (B (25-50 %)) - Variant with squalane: Squalane, Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
Composition (FDA): oil (A (>50 %)), extract (B (25-50 %)) - Variant with sunflower oil: Helianthus Annuus (Sunflower) Seed Oil, Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
Composition (FDA): Oil (A (>50 %)), Extract (B (25-50 %)) - Variant as powder extract: Giant knotweed powder extract 10:1 (Polygonum cuspidatum), maltodextrin
Composition (FDA): extract (A (>50 %)), maltodextrin (C (10-25 %))
Composition (1169/2011) Food Regulation
Composition (1169/2011) Food Regulation
Variants with propylene glycol, glycerine, sunflower oil or as powder extract have food compliance:
- Variant with propylene glycol: water, humectant: propylene glycol, Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
- Variant with glycerine: Humectant: Glycerine (vegetable), Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
- Variant with sunflower oil: Sunflower oil, Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
- Variant as powder extract: Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
Technical documentation
Technical documentation
TDS, SDS and CDS available after login
Compliance
Compliance
Variants with glycerine, sunflower oil or as a powder extract can be obtained with COSMOS, Natrue and/or EU Organic Regulation (Regulation (EU) 2018/848) or USDA Organic compliance on request. Please use our industry inquiry form.
CAS number
CAS number
90147-05-0
Use
Use
This product can be used in various ways in the cosmetics and food industry.
Recommended application concentration
Recommended application concentration
2-5 %
Packaging
Packaging
Giant knotweed powder extract 10:1 (Polygonum cuspidatum): tube bag / plastic container.
Organoleptics
Organoleptics
Visual evaluation: fine powder
Color evaluation: golden yellow to light brown
Origin
Origin
Europe and the rest of the world. Organically grown goods are preferred. Please note that this product contains biological ingredients whose biodegradability cannot be tested. Such ingredients were therefore not considered in the assessment.
Chemical-physical properties
Chemical-physical properties
pH: 3,9-7,80
Density: 0.50-0.70
Refractometry: 1.40-1.50
Analyzes
Analyzes
This is provided by dynamic characteristics and may not fully correspond to your language or regulatory space:
Analysis [s], [a]:
Name: Giant knotweed powder extract 10:1 (Polygonum cuspidatum)
Analysis date:
Batch: ;
Supplier: CONIUNCTA
Preservative
Preservative
unpreserved
Microbiology
Microbiology
Total count of aerobic mesophilic bacteria / g / Method: ISO 21149:2022-08: < 100; Total count of yeasts and molds / g / Method: ISO 16212:2022-08: < 100; Total count of aerobic mesophilic microorganisms (bacteria + yeasts + molds) / g / Method: ISO 17516:2014-10: < 100; Non-specified microorganisms (including gram-negative bacteria such as Pluralibacter gergoviae and Burkholderia cepacia) / g / Method: ISO 18415:2022-08: not detectable; Specified microorganisms (Pseud. aeruginosa, E.coli, Staph. aureus, Candida albicans) / g / Method: ISO 18415:2022-08: not detectable
Durability
Durability
When stored dry between 10 and 30°C in the original sealed container: 24 months.
Flash point
Flash point
Not applicable
Shipping information
Shipping information
The product will be sent to you depending on your customer status.
Disclaimer
Disclaimer
It cannot be excluded that color changes may occur during storage depending on temperature. This is a raw material intended for the manufacture of cosmetics and/or food products. The images shown here serve to illustrate the liquid and are to be considered as approximate only. It is guaranteed that the products meet the specifications listed on their label, packaging and/or certificate of analysis at the time of shipment or for the expressly stated duration. CONIUNCTA® disclaims all express or implied warranties, including but not limited to implied warranties of merchantability or fitness for a particular purpose, with respect to our products or related information. The customer is solely responsible for determining the suitability of CONIUNCTA® products for their own applications, uses and processes, including ensuring that no third-party intellectual property rights are infringed. CONIUNCTA® shall not be liable for incidental, consequential, indirect, exemplary or special damages of any kind arising from the use or failure of the products. All sales are subject to the full terms and conditions of sale of CONIUNCTA®. Prices may be changed without prior notice and CONIUNCTA® reserves the right to modify or discontinue products without prior notice.
FAQ
FAQ
Please read our FAQ.
Giant knotweed powder extract is a plant-based dry extract from the root of Polygonum cuspidatum (syn. Fallopia japonica), traded in English as giant knotweed. The lead marker is the stilbenoid resveratrol (trans-). The INCI name is Polygonum Cuspidatum Root Extract (CAS 90147-05-0).
Production
The extract is obtained at a 10:1 ratio and supplied as a fine, unpreserved powder. The colour ranges from golden yellow to light brown. Designed in Germany.
Specification
- INCI: Polygonum Cuspidatum Root Extract
- CAS: 90147-05-0
- Lead marker: resveratrol (trans-)
- Extract ratio: 10:1
- Appearance: fine powder, golden yellow to light brown
- Solubility: good in water
- pH value: 3.9 to 7.80
- Density: 0.50 to 0.70
- Preservation: unpreserved
- Vegan: yes
- Origin: Europe and the rest of the world, certified organic material is preferred
- Shelf life: 24 months when stored dry between 10 and 30 °C in the original sealed container
- Packaging: flat pouch or plastic container
Use in cosmetics
For cosmetic formulations, a use concentration of 2 to 5 % is specified. The extract is readily water-soluble and can be incorporated into aqueous systems. As a resveratrol-containing raw material, it is used in antioxidant formulation concepts and is suitable for all cosmetic application variants.
Use in food
The raw material is suitable for the food industry in all variants. It is vegan, unpreserved and readily water-soluble, which simplifies processing in aqueous preparations. The regulatory status (including a possible Novel Food classification) must be checked and documented by the user for the respective application.
Frequently asked questions
Is Polygonum cuspidatum the same as giant knotweed?
Yes. Polygonum cuspidatum (syn. Fallopia japonica) is the botanical name for giant knotweed. In English-language trade, the plant is listed as giant knotweed.
How soluble is giant knotweed powder extract?
The extract is readily soluble in water and comes as a fine powder in golden yellow to light brown.
At what concentration is the extract used?
For cosmetic formulations, a use concentration of 2 to 5 % is specified. The specific dosage depends on the formulation and target product.
Is the extract vegan and preserved?
The raw material is vegan and is supplied unpreserved.
Which documents are available and how can I buy giant knotweed powder extract?
The technical data sheet (TDS), safety data sheet (SDS) and certificate of analysis are available after login. Prices and volume tiers are available after login; B2B terms on request.
Primary Marker: Resveratrol (trans-)





