Vitamin C 23 Serum

Brightens, protects and smooths skin with 23% pure vitamin C.

COSRX Vitamin C 23 Serum is an extremely potent antioxidant treatment containing 23% pure L-ascorbic acid , clinically known to brighten dull skin, fade dark spots, and stimulate collagen production. This powerful yet lightweight formula helps improve skin tone, minimize signs of aging, and defend skin against environmental damage.

Enhanced with hyaluronic acid, tocotrienols (super vitamin E) and allantoin , it soothes and hydrates the skin while providing visible radiance.

✨ Key benefits

• ✅ Pure Vitamin C (L-ascorbic acid) with 23% for radiance and firmness

• ✅ Helps fade dark spots, acne scars and hyperpigmentation

• ✅ Powerful antioxidants fight free radical damage

• ✅Moisturizing formula with hyaluronic acid and panthenol

• ✅ Suitable for all skin types , including sensitive and mature skin

• ✅ Light, non-sticky texture that blends well under other skincare

🧴 How to use

1. Use on clean, dry skin after toner (serum step)

2. Shake the bottle gently before use.

3. Apply 2-3 drops to face and neck

4. Massage gently with your fingertips from the center outwards.

5. Follow with moisturizer and always apply SPF during the day.

💡 Start with 2-3 times a week, then continue to daily use as your skin adapts.

🌿 Fueled with skin-loving ingredients

🍊 23% L-ascorbic acid (vitamin C)
brightens skin tone, stimulates collagen and fades dark spots

💦 Sodium hyaluronate and panthenol
deeply hydrate and support the skin’s barrier function

🌿 Allantoin and Glutathione
Soothe, heal and reduce irritation while enhancing luminosity

🧬 Tocotrienols (Super Vitamin E)
Stronger antioxidant protection than regular vitamin E

🌼 Niacinamide and Caffeine
Helps smooth texture, reduce puffiness and even out tone

🌻 Vegetable oils (Camellia, Sunflower, Saffron, Carrot)
Nourish and replenish the skin with vitamins and essential fatty acids

🔍 Full list of ingredients

<details> <summary>Click to view</summary> Water, Ascorbic Acid, Propanediol, Dimethicone, Tromethamine, Panthenol, Ethyl Ascorbyl Ether, Squalane, Caffeine, Sodium Chloride, Sodium Hyaluronate, Sodium Sulfite, Disodium EDTA, Disodium Acetaline, A Gcosadelutina Gardenia Extract, Allantoin, Dextrin, Tocotrienols, Tocopherol, Elaeis Guineensis (Palm) Oil, Butylene Glycol, Arginine, Niacinamide, Pentylene Glycol, Alcohol Denat., Helianthus Annuus (Sunflower) Seed Oil, Glycyrrhiza Extract, M. Carthamus Tinctorius (Safflower) Seed Oil, Camellia Japonica Seed Oil, Daucus Carota Sativa (Carrot) Root Extract, Beta-Carotene</details>

✅ Perfect for:

✔️ Dull or uneven skin tone
✔️ Hyperpigmentation and post-acne marks
✔️ Early signs of aging and fine lines
✔️ Skincare users looking for high potency Vitamin C