COSRX

COSRX The Vitamin C 23 Serum — 23% Vitamin C Radiance Serum

€17,90 Regular price€36,90-51%

High-concentration vitamin C serum (23%) for maximum radiance. An intensive anti-dark-spot and anti-ageing treatment for experienced skin.

  • 23% pure vitamin C for maximum radiance
  • Fights brown spots and photo-ageing
  • Lightweight texture that absorbs quickly

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Sold out
Shipped from Reunion Island
100% authentic
Free sample
Who is it for?
🩷​ Is your skin looking dull?

🩷​ Looking to boost your skin's radiance?

COSRX The Vitamin C 23 Serum is made for you.
How to use
🩷​ On clean, dry skin, shake the bottle to mix the actives.

🩷​ Apply 2-3 drops to your face and massage gently from the centre outwards until fully absorbed.

🚨 Apply sunscreen afterwards if used in the morning.
Full description

A vitamin concentrate for your skin!

Luminous, revitalised skin, day after day.

The Vitamin C 23 Serum by COSRX is formulated with a powerful concentration of 23% pure vitamin C (ascorbic acid) to brighten your complexion, reduce the signs of ageing and improve your skin's elasticity.

✨ Instant radiance: Brightens the skin and fades brown spots.
💧 Hydration and firmness: Enriched with hyaluronic acid and vitamin E for soft, plump skin.
✔ Suitable for all skin types: Ideal for dehydrated and dull skin.

Why you'll love it


✔ A highly concentrated formula for fast, visible results.
✔ Double antioxidant action thanks to vitamin C and vitamin E.
✔ A light, fast-absorbing texture, perfect for daily use.
✔ Vegan and safe for pregnant women.

Add it to your basket now!


Treat your skin to expert care with this serum enriched with pure vitamin C for a luminous, even complexion. ✨

Ingredients (INCI)
Aqua, Ascorbic Acid, Propanediol, Dimethicone, Tromethamine, Panthenol, 3-O-Ethyl Ascorbic Acid, Squalane, Caffeine, Sodium Chloride, Sodium Hyaluronate, Sodium Sulfite, Disodium EDTA, Glutathione, Adenosine, Acetyl Glucosamine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Tocotrienols, Tocopherol, Elaeis Guineensis Oil, Butylene Glycol, Arginine, Niacinamide, Pentylene Glycol, Alcohol Denat., Helianthus Annuus Seed Oil, Glycyrrhiza Glabra Root Extract, Methyl Trimethicone, Carthamus Tinctorius Seed Oil, Camellia Japonica Seed Oil, Daucus Carota Sativa Root Extract, Beta-Carotene
Shipping & returns
  • Shipped from Reunion Island · La Poste / Colissimo
  • Order preparation: 2 to 5 business days
  • Returns accepted within 14 days (unopened products)
  • Questions? info@haruxbom.com
Within Reunion Island
WeightNo signatureWith signature
≤ 0,25 kg5,49 €8,79 €
≤ 0,50 kg7,59 €10,89 €
≤ 1,00 kg9,59 €12,89 €
≤ 2,00 kg11,19 €14,49 €
≤ 5,00 kg17,39 €20,69 €
Reunion → Mainland France
WeightWith signature
≤ 0,50 kg15,59 €
≤ 1,00 kg19,17 €
≤ 2,00 kg24,87 €
≤ 5,00 kg35,74 €

Prices excl. tax · VAT not applicable (art. 293 B CGI)

Shipping & returns policy

The formula

Key ingredients

Pure vitamin C (23%)
Brightens the complexion, reduces dark spots and boosts radiance.
Vitamin E (tocotrienol)
Stimulates collagen production and improves elasticity.
Hyaluronic acid
Intensely hydrates and keeps skin supple.
The brand

COSRX

Science working for your skin A cult K-beauty brand, COSRX is loved for its minimalist, highly effective formulas. Acne, pores, redness, dark spots… it targets every concern with actives such as salicylic acid (BHA) and centella asiatica. 🌸 Perfect for anti-acne, anti-blemish and oily-skin routines🌿 Bestsellers: Low pH Good Morning Gel Cleanser, Aloe Soothing Sun Cream🌴 Available at Haru & Bom with delivery to Reunion Island and mainland France Looking for an effective, dermatologically tested Korean brand? You'll love COSRX....
All COSRX products

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Reviews published before September 2026 come from our previous review tool and keep their original date.

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