• COSRX The Vitamin C 23 Serum 20g
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COSRX The Vitamin C 23 Serum 20g

COSRX
OMR 8.000
OMR 8.000*
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Out of Stock

SKU : 8809598454651

The 23% highly concentrated stabilized pure vitamin C serum improves skin tone, reduces wrinkles, and targets dull and rough skin as a vitamin C booster. This serum is highly effective, and to slowly prevent oxidation, it is divided into two layers with oil on top of the serum, providing a moisturizing finish
Size 20g
Suitable For All skin types
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Other governorates: courier delivery, usually 1–3 working days.
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Product Information

Overview

COSRX The Vitamin C 23 Serum is a highly concentrated brightening serum formulated with 23% stabilized pure Vitamin C. Designed to improve skin tone, reduce the appearance of wrinkles, and target dull and rough skin, this powerful vitamin C booster features a unique two-layer formula — with oil on top of the serum — to slow oxidation and deliver a moisturizing finish. A premium addition to any Korean skincare routine targeting advanced brightening and anti-aging.

Key Features
  • 23% stabilized pure Vitamin C — ultra-high concentration brightening booster
  • Unique two-layer formula (oil + serum) to prevent oxidation
  • Improves skin tone and targets dullness and rough texture
  • Delivers a moisturizing, luminous finish
  • Free from parabens and artificial fragrance
  • Dermatologist tested
Benefits
  • Visibly brightens and evens out skin tone
  • Reduces the appearance of fine lines and wrinkles
  • Targets dull, rough, and uneven skin texture
  • Protects skin against free radical and environmental damage
  • Boosts collagen synthesis for firmer, more youthful skin
How to Use

Shake the bottle gently before use to mix the two layers. After cleansing and toning, apply 2–3 drops of COSRX The Vitamin C 23 Serum onto face and neck. Gently pat until fully absorbed. Use in the morning before moisturizer and SPF. Store in a cool, dark place to preserve potency. Avoid combining with strong actives such as AHA/BHA or retinol in the same routine.

Ingredients

Ascorbic Acid (23%), Ethyl Ascorbic Acid, Niacinamide, Sodium Hyaluronate, Panthenol, Allantoin, Betaine, Squalane, 1,2-Hexanediol, Adenosine. Full ingredient list may vary — please refer to product packaging.

Specifications
BrandCOSRX
Product TypeSerum
Size20g
Suitable ForAll skin types
Disclaimer:

Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.

Same key ingredient, other options

Key ingredient: Vitamin C · 23% · Serum

This item is out of stock. The products below share the same key ingredient.

Formulas, textures and other ingredients differ between products. Patch-test new skincare first, and ask our pharmacist if you are unsure. Ask a pharmacist on WhatsApp

Frequently Asked Questions

How do I use this two-layer vitamin C serum?

Shake well to blend the layers, then apply to cleansed skin and follow with moisturiser. Use daily sunscreen alongside it.

Who is it suitable for?

This high-strength vitamin C serum is designed to help visibly brighten dull, uneven-looking skin; sensitive skin should patch test first.

Why does it have two layers?

The oil layer sits on top of the serum to help protect the vitamin C from oxidising; shake to combine before each use.

Can I use it with other actives?

It's best not to combine with other strong exfoliating acids at the same time; space out use or ask our pharmacists.

How long will a 20g bottle last?

Used a few drops at a time, a 20g bottle typically lasts one to two months.