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COSRX The Vitamin C 23 Serum – Illuminating Serum With Vitamin C

Brand:COSRX

Original price was: 24,79 €.Current price is: 15,79 €.

-36%

A facial serum with 23% pure ascorbic acid for dull, uneven-toned skin and visible post-breakout marks, helping to brighten the complexion and create the appearance of smoother skin. COSRX The Vitamin C 23 Serum is enriched with 3-O-ethyl ascorbic acid, tocotrienols, glutathione, and skin-comforting ingredients. Its lightweight, not-quite-watery texture is best suited to those already familiar with concentrated vitamin C.

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COSRX The Vitamin C 23 Serum – a high-concentration pure vitamin C serum for radiance

COSRX The Vitamin C 23 Serum is a facial serum with 23% pure vitamin C, formulated for dull, uneven-toned skin and visible post-breakout marks. The number in the name refers specifically to the concentration of ascorbic acid: this is not a cautious first step into vitamin C skincare, but a more intensive formula for those already familiar with this active ingredient. The concept is simple and clear – combining a high dose of pure vitamin C with antioxidants and comfort-supporting ingredients, so the serum is intended not only to boost radiance but also to promote a smoother-looking complexion.

23% vitamin C with antioxidant support

At the heart of the formula is pure ascorbic acid, complemented by the vitamin C derivative 3-O-ethyl ascorbic acid. This duo is accompanied by COSRX’s signature “Super Vitamin E” – tocotrienols from the tocopherol family – and glutathione. The key point of this product is not a long list of promises, but its decisive active-ingredient concentration, balanced with ingredients that support hydration and skin comfort.

  • 23% pure vitamin C: helps brighten dull-looking skin, contributes to a more even-looking skin tone, and helps reduce the appearance of dark spots.
  • Super Vitamin E and glutathione: this antioxidant combination complements the vitamin C concept and helps support the skin’s defenses against environmental oxidative stress.
  • Comfort-supporting base: panthenol, allantoin, sodium hyaluronate, and squalane soften the feel of the intensive vitamin C formula and help reduce the sensation of dryness.

The softly yellow serum is lightweight, though not completely watery: its texture resembles a thin layer of serum and oil. It spreads smoothly and, once absorbed, leaves a soft, non-matte glow, making it a natural fit before moisturizing skincare. It will appeal most to experienced vitamin C serum users looking for a clearly concentrated formula – COSRX The Vitamin C 23 Serum stands out not through a decorative promise, but through its clearly defined focus on 23% pure vitamin C.

Usage

After cleansing your face in the morning or evening, apply a few drops of COSRX The Vitamin C 23 Serum to your fingertips and gently massage it onto your face, focusing on areas with dark spots or uneven skin tone. Allow the serum to absorb fully before applying moisturizer or sunscreen. Start with using the serum once every other day to gauge your skin’s tolerance, gradually increasing to daily use as your skin adjusts. Always perform a patch test before full application to avoid any potential irritation.

Ingredients

Water, Ascorbic Acid, Propanediol, Dimethicone, Tromethamine, Panthenol, 3-O-Ethyl Ascorbic Acid, Squalane, Caffeine, Sodium Chloride, Sodium Hyaluronate, Disodium EDTA, Sodium Sulfite, Glutathione, Adenosine, Gardenia Florida Fruit Extract, Dextrin, Acetyl Glucosamine, Allantoin, Tocotrienols, Tocopherol, Elaeis Guineensis (Palm) Oil, Niacinamide, Butylene Glycol, Arginine, Alcohol Denat., Pentylene Glycol, Glycyrrhiza Glabra (Licorice) Root Extract, Tocopherol, Carthamus Tinctorius (Safflower) Seed Oil, Helianthus Annuus (Sunflower) Seed Oil, Camellia Japonica Seed Oil, Methyl Trimethicone, Helianthus Annuus (Sunflower) Seed Oil, Daucus Carota Sativa (Carrot) Root Extract, Beta-Carotene, Tocopherol

The manufacturer is responsible for the product’s ingredients. Due to possible changes, we always recommend checking the ingredient list directly on the packaging.

Additional information

Quantity: No selection

20g

Country of origin: No selection

South Korea

Manufacturer: No selection

COSRX Inc.

Manufacturer’s website: No selection

https://www.cosrx.com/

Manufacturer’s address: No selection

5F, West Centerfield, 231 Teheran-ro, Gangnam-gu, Seoul 06142, Republic of Korea

Manufacturer’s email: No selection

cosrx_info@cosrx.co.kr, global@cosrx.co.kr

EU responsible person: No selection

Biorius

EU responsible person’s address: No selection

14 Avenue Léonard de Vinci, 1300 Wavre, Belgium

EU responsible person’s email: No selection

info@biorius.com

Brand

COSRX

Cosrx Cosmetics: Science, Simplicity, and Exceptional Skincare

Who said skincare has to be complicated? The South Korean brand Cosrx Cosmetics boldly challenges this myth and proves that real effectiveness lies in simplicity. Since its founding in 2013, Cosrx has earned an impeccable reputation as a leader in innovation and efficacy. Their mission? Not just to create products, but to offer a unique experience—using minimal yet incredibly effective ingredients that address various skin concerns and adapt to different needs. Isn't that what we all dream of? Skincare that not only promises but truly transforms. In today's cosmetics market, where labels often resemble pages from a chemistry textbook, Cosrx Cosmetics stands out with its simple yet astonishingly effective approach. Their products contain only carefully selected active ingredients: Each ingredient is like a virtuoso in an orchestra, performing its part so precisely that your skin simply cannot help but notice. Balanced pH, reduced acne, accelerated regeneration, and restored optimal moisture levels. Can such a simple approach deliver such impressive results? Absolutely. And this is no longer just a theory—it's a proven reality. Cosrx merges scientific progress with the elegance of cosmetology, and the results speak for themselves. Cosrx products are more than just cosmetics—they are small revolutions in your skincare routine. Take, for instance, the legendary Advanced Snail 96 Mucin essence. Did you know that this product holds true skin-repairing magic? It effectively heals damaged skin, reduces redness, and gives your face a natural glow. And the cult-favorite Low pH Good Morning Gel Cleanser? It's more than just a cleanser—it's like a morning sip of coffee for your skin, gently cleansing without disrupting its protective barrier. And, of course, we cannot forget the famous Acne Pimple Master Patch—tiny yet miraculous patches that combat pimples overnight and reduce inflammation. These are products that not only transform your skin but also redefine skincare philosophy. However, Cosrx Cosmetics cares not only for your skin but also for the planet. All their products are manufactured following the highest quality standards, without cruel animal testing. Additionally, the brand actively strives to reduce packaging waste and promotes sustainable production practices. Isn't it reassuring to know that your chosen cosmetics contribute to a cleaner planet? It's a double benefit—your skin glows, and the world becomes a little better.

What Makes Cosrx Stand Out?

But what truly sets Cosrx apart? Their genuine connection with customers. This brand doesn't just create products—they listen. Customer feedback, ideas, and even criticism serve as their primary source of inspiration. This attentiveness and dedication allow them to craft not just cosmetics but a real bond with the people who use them. Isn't the perfect skincare the one that cares just as much as you do? By choosing Cosrx, you are opting for more than just products—you are committing to your skin: a promise of health and beauty, backed by science, transparency, and ethics. This is not just another ordinary item on the shelf—it is an investment in your skin's future. This skincare doesn't just change your appearance; it helps you feel more confident in your own skin. And what more could you ask for?
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