The Vitamin C 13 serum

COSRX Vitamin C 13 Serum

A gentle yet highly effective brightening serum formulated with 13% stabilized Vitamin C to help improve skin radiance and tone. This lightweight serum works to fade dark spots, blemishes, and discoloration while promoting a brighter and more even complexion.

Vitamin C is a powerful antioxidant that helps protect the skin from environmental damage and free radicals—factors that contribute to premature aging and dullness. With regular use, this serum supports skin rejuvenation, enhances natural glow, and helps minimize the appearance of hyperpigmentation.

Designed with a mild formulation suitable for daily use, it hydrates and revitalizes the skin without causing irritation—making it ideal for sensitive and dull skin types.

How to Use

1. After cleansing, during the serum step, gently shake the bottle once or twice.

2. Apply a few drops to the face.

3. Massage gently with fingertips, starting from the center and moving outward.

4. Follow with moisturizer and sunscreen during daytime use.

Key Ingredients

Water, Ascorbic Acid (13%), Butylene Glycol, 3-O-Ethyl Ascorbic Acid, Panthenol, Sodium Hyaluronate, Glutathione, Niacinamide, Squalane, Allantoin, Licorice Root Extract, and other skin-nourishing agents.