EFFECTICS® Ethyl Ascorbic Acid (3-O-Ethyl Ascorbic Acid)
EFFECTICS® Ethyl Ascorbic Acid (3-O-Ethyl Ascorbic Acid)
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Estimated delivery time: 20 Oct 2026 to 24 Oct 2026
Available in sizes up to 250 g (depending on current availability and unit price, the quantity may be smaller).
Scope of delivery: sample with example CoA, TDS, SDS and CDS. The example CoA is the CoA from the document bar and is not batch-specific. Development samples are intended for development, not for use in end products. One development sample per customer and article.
With the sample you receive a code that credits the sample price towards your next purchase.
Delivery time: liquid and oil extracts are usually prepared as samples within 10 working days. We confirm the dispatch date with the order confirmation.
Second step: packs from 5 kg, price after login. The sample price is credited.
Third step: production quantities above 5 kg are made to order. Quantity, packaging and certification via the industrial enquiry.
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Ingredients (1223/2009) Cosmetics Regulation
Ingredients (1223/2009) Cosmetics Regulation
Composition (1169/2011) Food Regulation
Composition (1169/2011) Food Regulation
Technical documentation
Technical documentation
TDS, SDS, CDS and example CoA available after login
Compliance
Compliance
Variants with glycerin or sunflower oil are available in organic quality according to an IFOAM-recognised standard (EU Organic Regulation (EU) 2018/848), selectable via the “Quality” option. Organic is currently not available for powder extracts. Certificate DE-ÖKO-001.276-0076919.2026.001, Kiwa BCS Öko-Garantie GmbH, valid until 31 January 2028. This covers COSMOS and NATRUE; USDA Organic is possible under the EU-US equivalence arrangement. Industrial quantities above 5 kg via the industrial inquiry.
Specification
Specification
CAS number: 86404-04-8
Use: This product is intended exclusively for the cosmetics industry.
Recommended use level: 0.5–5.0 % (up to 30 % in intensive treatments)
Packaging: plastic container
Visual evaluation: fine, white powder
Colour evaluation: white
Origin: Synthetically produced (vitamin C derivative).
pH: 3.0–6.0 (3 % aqueous solution)
Density: 1.46 g/cm³ (predicted)
Refractometry:
Preservative: none added
Microbiology: Total count of aerobic mesophilic bacteria / g / Method: ISO 21149:2022-08: < 10; Total count of yeasts and molds / g / Method: ISO 16212:2022-08: < 10; Total count of aerobic mesophilic microorganisms (bacteria + yeasts + molds) / g / Method: ISO 17516:2014-10: < 10; 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
Shelf life: 24 months unopened in the original container at 2–8 °C; protect from light and moisture.
Flash point: Not applicable (solid)
Test scope, methods and specification per batch: see the example CoA under Documents. The batch CoA accompanies every delivery.
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. Should cloudiness or precipitates develop, filtration of the product would be required. This has no effect on the quality of the product. This is a raw material intended for the manufacture of cosmetics. 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.
How do I obtain a sample?
How do I obtain a sample?
Two routes. For development, select the “Development sample” variant at €49 on the product page and order it through your customer account. The sample comes with an example CoA (not batch-specific), TDS, SDS and CDS; it is intended for development, not for use in end products. One sample per customer and article; for PRO extracts the sample is considerably smaller than 250 g (approx. 50 g). With the sample you receive a code that credits €49 towards your next purchase. For industrial quantities above 5 kg, use the industrial inquiry on the product page. You receive a quotation with quantity, quality and base.
FAQ
FAQ
Please read our FAQ.
EFFECTICS® Ethyl Ascorbic Acid (INCI: 3-O-Ethyl Ascorbic Acid, CAS 86404-04-8) is a water-soluble, stabilized vitamin C derivative for cosmetic formulations. The ethyl group protects the active vitamin C structure against oxidation and ensures a continuous release in the skin. The raw material comes as a fine white powder and is supplied without carriers and without preservatives.
Specification
- INCI: 3-O-Ethyl Ascorbic Acid
- CAS number: 86404-04-8
- Appearance: fine white powder
- Solubility: readily soluble in water
- pH value: 3.0–6.0 (3% aqueous solution)
- Carrier: none
- Preservatives: none
- Vegan: yes
- Microbiology: total viable count below 10 per gram (ISO 17516), specified microorganisms not detectable (ISO 18415)
- Regulatory status: raw material for the cosmetics industry according to Regulation (EC) No 1223/2009
- Packaging: plastic container
- Shelf life: 24 months unopened in the original packaging at 2–8 °C; store protected from light and moisture
Application in cosmetics
EFFECTICS® Ethyl Ascorbic Acid is used in formulations for brightening, for hyperpigmentation and for collagen stimulation. Typical applications include brightening serums, anti-aging creams and sun care products. The documented properties of the raw material include antioxidant, astringent, balancing and nourishing effects.
The usage concentration is 0.5–5.0% (up to 30% in intensive care). The high stability of the derivative allows formulations across a wide pH range from 4 to 7. Since the powder dissolves readily in water, it is suitable for aqueous systems such as serums and creams.
Application in food
EFFECTICS® Ethyl Ascorbic Acid is intended exclusively for the cosmetics industry and is not suitable for food.
Frequently asked questions
What is 3-O-Ethyl Ascorbic Acid?
3-O-Ethyl Ascorbic Acid is a stabilized vitamin C derivative with high resistance to oxidation. The ethyl group at the 3-O position protects the active vitamin C structure. The raw material is commonly known as ethyl ascorbic acid.
Is ethyl ascorbic acid water-soluble?
Yes. The fine white powder dissolves readily in water and can therefore be incorporated into aqueous formulations.
At what concentration is ethyl ascorbic acid used?
Depending on the formulation, the usage concentration is 0.5–5.0% (up to 30% in intensive care). Further technical details are provided in the TDS.
Is the product vegan and preserved?
EFFECTICS® Ethyl Ascorbic Acid is vegan, contains no preservatives and comes without carriers.
How is ethyl ascorbic acid stored?
Unopened in the original packaging at 2–8 °C, protected from light and moisture. Under these conditions the shelf life is 24 months. A color change during storage is possible and does not affect the quality of the product.
The technical data sheet (TDS) and the safety data sheet (SDS) are available for download on the product page. Prices and volume discounts after login.


