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COSRX The Vitamin C 23 Serum

COSRX The Vitamin C 23 Serum

Brighten, smooth, and restore your skin with a high-potency Vitamin C formula designed to visibly improve tone, glow, and overall skin quality.

• Visibly brightens dull skin and evens out tone

• Smooths the appearance of fine lines and texture

•Supports hydration and a healthier-looking skin barrier

Suitable for all skin types (especially dull, uneven, or ageing skin)

£15.00
£23.00 £15.00
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Shipping & Returns

Please allow up to 1-2 business days for processing before your order ships.

Estimated Delivery Times

Depending on your geographic location, the delivery may take approximately 5-10 business days.

*Please note, estimated shipping times are not guaranteed.

Return Policy

Zuvella Co will accept exchanges & returns within 30 days of receiving your orde, provided the item is unopened, unused and in the same condition as received.

For hygiene and safety reasons, we do not accept returns or refunds on opened , used, or tampered products.

To process a return or exchange, photographic proof may be required to confirm the condition before approval.





How To Use

How to use


Shake gently before use
Apply a few drops to clean, dry skin after cleansing (and toner if used)
Gently pat into the skin until fully absorbed
Follow with moisturiser
Use SPF in the morning when using Vitamin C





Key Ingredients

Full Ingredients

Aqua, Ascorbic Acid (23%), Propanediol, Dimethicone, Tromethamine, Panthenol, Ethyl Ascorbyl Ether, Squalane, Caffeine, Sodium Chloride, Sodium Hyaluronate, Sodium Sulfite, Disodium EDTA, Glutathione, Adenosine, Acetyl Glucosamine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Tocotrienols, Tocopherol, Elaeis Guineensis (Palm) Oil, Butylene Glycol, Arginine, Niacinamide, Pentylene Glycol, Alcohol Denat., Helianthus Annuus (Sunflower) Seed Oil, Glycyrrhiza Glabra (Licorice) Root Extract, Methyl Trimethicone, Carthamus Tinctorius (Safflower) Seed Oil, Camellia Japonica Seed Oil, Daucus Carota Sativa (Carrot) Root Extract, Beta-Carotene

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Featured in leading beauty publications

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Trusted by thousands of beauty customers worldwide

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Reveal Brighter, Smoother, Healthier-Looking Skin

If your skin looks dull, uneven, or tired, it’s often lacking the right combination of active ingredients to restore clarity and glow. The COSRX Vitamin C 23 Serum is designed to target these concerns at the source—helping your skin appear brighter, smoother, and more refined with consistent use.

Formulated with a high concentration of pure Vitamin C (23%), this serum works to visibly improve skin tone, reduce the look of pigmentation, and support a more radiant complexion. It helps defend against environmental stressors while encouraging a fresher, healthier appearance over time.

High-Performance Brightening & Skin Support

This advanced formula combines Vitamin C with Vitamin E and Hyaluronic Acid to deliver both visible results and lasting skin support. While Vitamin C works to brighten and refine, Hyaluronic Acid helps maintain hydration levels, keeping the skin feeling soft, plump, and balanced.

Additional soothing ingredients like Allantoin help calm the skin, making this a powerful yet well-rounded step in your routine—designed not just for results, but for overall skin quality improvement.

Consistent Use, Visible Results

With regular use, skin appears clearer, more even, and visibly refreshed. Texture looks smoother, tone appears more balanced, and your natural glow is restored—without the need for complicated routines or harsh treatments.

Where It Fits In Your Routine

Use after cleansing and toning, before moisturiser. This is your treatment step—designed to target tone, brightness, and overall skin clarity

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