Reveal brighter, smoother and more radiant skin with COSRX The Vitamin C 23 Serum. Formulated with a powerful 23% Pure Vitamin C (Ascorbic Acid), this high-strength serum helps visibly improve dullness, uneven skin tone, dark spots and signs of ageing while delivering antioxidant protection.
Combined with Vitamin E and Hyaluronic Acid, the formula helps support skin elasticity, boost hydration and promote a healthier-looking complexion.
Key Benefits
✨ Brightens dull and tired-looking skin
✨ Helps fade dark spots and post-acne marks
✨ Improves overall skin tone and radiance
✨ Helps reduce the appearance of fine lines and wrinkles
✨ Supports firmer, smoother-looking skin
✨ Provides powerful antioxidant protection
✨ Helps maintain skin hydration and moisture balance
Hero Ingredients
🍊 23% Pure Vitamin C (Ascorbic Acid)
A highly concentrated form of Vitamin C that helps brighten skin, improve uneven tone, fade pigmentation and support collagen production.
🌿 Super Vitamin E (Tocotrienol)
A potent antioxidant that helps protect skin from environmental stressors while supporting skin elasticity and healthy ageing.
💧 Hyaluronic Acid
Helps attract and retain moisture to keep skin hydrated, plump and comfortable.
Recommended For
✔ Dull and uneven skin tone
✔ Dark spots and hyperpigmentation
✔ Post-acne marks
✔ Fine lines and early signs of ageing
✔ Loss of radiance and firmness
✔ Normal, combination and oily skin
Texture
A lightweight, concentrated serum that absorbs quickly into the skin while delivering intensive brightening and antioxidant care.
How to Use
- After cleansing and toning, apply 2–3 drops to the face.
- Gently spread and pat until absorbed.
- Follow with moisturizer.
- Apply sunscreen during the day.
For beginners, start by using 2–3 times per week and gradually increase frequency as tolerated.
Why You'll Love It
The Vitamin C 23 Serum combines one of the highest concentrations of pure Vitamin C available from COSRX with Vitamin E and Hyaluronic Acid to target dullness, uneven tone and visible signs of ageing. With consistent use, skin appears brighter, smoother and more radiant while remaining hydrated and healthy-looking.
Size: 20ml
