Brighten, smooth, and revitalize your skin with the COSRX The Vitamin C 23 Serum, a powerful antioxidant treatment formulated with 23% pure Vitamin C (L-Ascorbic Acid) to visibly fade dark spots, even out skin tone, and boost collagen production. This high-potency serum is ideal for those targeting pigmentation, acne scars, dullness, and early signs of ageing.

The formula also includes Super Vitamin E (Tocotrienol), Hyaluronic Acid, and Allantoin to hydrate, soothe, and protect the skin barrier, making it suitable for daily use while minimizing irritation. Despite its high concentration of Vitamin C, this serum absorbs quickly and leaves skin feeling smooth, radiant, and refreshed — not sticky or greasy.

For optimal results, pair with daily SPF and store in a cool, dark place to preserve ingredient potency.

Key Benefits

• 23% pure Vitamin C to brighten and fade dark spots

• Reduces hyperpigmentation and acne scarring

• Boosts collagen and improves skin elasticity

• Hydrates and soothes with Hyaluronic Acid and Allantoin

• Lightweight, fast-absorbing, non-greasy formula

• Helps improve overall radiance and skin tone

Skin Type

• All skin types, especially dull, pigmented, or ageing skin

• Not recommended for extremely sensitive or reactive skin

Texture & Finish

• Lightweight, slightly oily serum

• Absorbs quickly with a smooth, radiant finish

Size

20ml

How to Use

1. Apply 2–3 drops to cleansed and toned skin.

2. Gently pat into skin until fully absorbed.

3. Use once daily (preferably in the evening).

4. Follow with a moisturizer. Always apply SPF in the morning when using Vitamin C.

Storage Tips

• Keep refrigerated or in a cool, dark place to preserve potency.

• Slight tingling is normal upon first use.

Highlights

• 23% L-Ascorbic Acid for powerful brightening and anti-ageing

• With Tocotrienol (Super Vitamin E) for antioxidant protection

• Hyaluronic Acid and Allantoin for hydration and comfort

• Fragrance-free, essential oil-free, and cruelty-free

• Dermatologist-tested and non-comedogenic

What’s in the box

1 x COSRX The Vitamin C 23 Serum 20ml