COSRX Advanced The Vitamin C 23 Serum (20gm)

COSRX Advanced The Vitamin C 23 Serum – 20 g

COSRX Advanced The Vitamin C 23 Serum is a potent brightening serum formulated with a high concentration of 23% pure vitamin C (ascorbic acid) to help improve uneven skin tone, reduce the appearance of dark spots and hyperpigmentation, and boost radiance. Its lightweight, fast-absorbing texture makes it suitable for daily use, especially in evening routines (with sunscreen in the daytime).

This serum targets dullness, discoloration, and signs of aging for a brighter, more even, and glowing complexion.

Key Benefits

• Helps brighten dull, uneven skin tone

• Reduces the look of dark spots and hyperpigmentation

• Supports a more radiant, glowing complexion

• Lightweight, fast-absorbing serum

• Improves skin texture over time

• Ideal for evening use (with daily sunscreen)

Product Details

• Product: Brightening Serum

• Brand: COSRX

• Variant: Advanced The Vitamin C 23

• Size: 20 g

• Skin Type: All skin types (especially dull, hyperpigmented, or uneven tone)

• Texture: Lightweight, slightly viscous serum

Key Ingredients

• Ascorbic Acid (23%) – high-strength pure vitamin C to help brighten and reduce pigmentation

• Hyaluronic Acid or humectants – provide hydration and support moisture retention

• Antioxidants – help protect skin from environmental stress

• Skin-conditioning agents – help smooth and improve texture

How to Use?

1. After cleansing and toning, apply a small amount to the face.

2. Gently pat or massage until fully absorbed.

3. Use once daily in the evening (or as tolerated).

4. Follow with moisturizer.

5. In the morning, always apply sunscreen when using vitamin C.