The COSRX Advanced The Vitamin C 23 Serum combines 23% pure Vitamin C with glutathione to target uneven skin tone, dullness, and early signs of aging. This lightweight formula helps brighten dark spots, reduce fine lines, and improve skin hydration for a firmer, more radiant complexion.

Why We Love It

• High-strength Vitamin C (ascorbic acid) helps brighten dullness and fade dark spots
• Potent antioxidant support protects against environmental stressors
• Lightweight serum absorbs quickly and helps improve radiance, tone, and clarity
• Helps support a more even, luminous complexion with regular use
• Great for daily brightening and anti-aging care when used thoughtfully

How to Use

1. After cleansing and toning, dispense a small amount onto your fingertips.
2. Gently pat or press the serum onto your face and neck until fully absorbed.
3. Follow with moisturizer and sunscreen to protect brightened skin.