
FAQ (Frequently Asked Questions)
1. What is Ethyl Ascorbic Acid?
Ethyl Ascorbic Acid (EAC) is a stable, water- and oil-soluble derivative of Vitamin C (ascorbic acid). It is formed by adding an ethyl group to the third carbon position of the ascorbic acid molecule, enhancing its stability and skin penetration. Once absorbed, it is metabolized into active Vitamin C within the skin.
2. What are the CAS Number and INCI Name of Ethyl Ascorbic Acid?
CAS Number: 86404-04-8
INCI Name: 3-O-Ethyl Ascorbic Acid
3. What are the benefits of using Ethyl Ascorbic Acid in personal care products?
Ethyl Ascorbic Acid offers multiple skin benefits:
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Antioxidant Protection: Neutralizes free radicals, protecting the skin from oxidative stress.
Collagen Synthesis: Stimulates collagen production, improving skin elasticity and reducing wrinkles.
Skin Brightening: Inhibits melanin production, helping to fade hyperpigmentation and even out skin tone.
Anti-Inflammatory: Reduces inflammation, beneficial for conditions like acne and rosacea.
Enhanced UV Protection: When used with sunscreen, it enhances protection against UV-induced damage.
4. What are the common applications of Ethyl Ascorbic Acid in personal care?
Ethyl Ascorbic Acid is incorporated into various skincare products, including:
Serums: For targeted antioxidant and brightening effects.
Moisturizers: To provide hydration along with Vitamin C benefits.
Sunscreens: Enhances UV protection when combined with SPF formulations.
Anti-Aging Products: Addresses signs of aging by promoting collagen synthesis.
Brightening Creams: Targets hyperpigmentation and uneven skin tone.
5. Is Ethyl Ascorbic Acid safe for use in personal care products?
Yes, Ethyl Ascorbic Acid is generally considered safe for topical use in cosmetics. Its enhanced stability reduces the risk of oxidation, making it suitable for various formulations. However, as with all skincare ingredients, it's advisable to perform a patch test before widespread use, especially for individuals with sensitive skin.
6. Can Ethyl Ascorbic Acid cause skin irritation?
Ethyl Ascorbic Acid is typically well-tolerated. However, in rare cases, individuals may experience mild irritation, redness, or allergic reactions. A study reported instances of allergic contact dermatitis linked to products containing 3-O-ethyl-L-ascorbic acid. Conducting a patch test prior to full application is recommended to ensure compatibility.
7. Is Ethyl Ascorbic Acid environmentally friendly?
While Ethyl Ascorbic Acid is a synthetic derivative, specific data on its environmental impact is limited. Its stability and efficacy may reduce the need for higher concentrations, potentially minimizing environmental load. However, further research is needed to fully assess its biodegradability and ecological footprint.
8. Are there alternatives to Ethyl Ascorbic Acid in personal care products?
Yes, alternatives include:
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Ascorbic Acid (L-Ascorbic Acid): Pure Vitamin C with high potency but less stability.
Ascorbyl Glucoside: A stable, water-soluble derivative suitable for sensitive skin.
Magnesium Ascorbyl Phosphate: A stable, water-soluble form with skin-brightening properties.
Sodium Ascorbyl Phosphate: Known for its stability and acne-fighting benefits.
Each alternative varies in stability, potency, and suitability for different skin types.