Cosrx The Vitamin C 13 Serum

Product Information

The COSRX The Vitamin C 13 Serum is a lightweight brightening serum formulated with 13% pure Ascorbic Acid to help improve the appearance of dullness, uneven tone and visible pigmentation.

The formula also contains Vitamin C derivatives, Panthenol, Acetyl Glucosamine, Glutathione, Niacinamide and Licorice Root Extract for additional brightening and conditioning care.

Ingredients

Water, Ascorbic Acid (13%), Butylene Glycol, Dipropylene Glycol, Tromethamine, 3-O-Ethyl Ascorbic Acid, Panthenol, Acetyl Glucosamine, Caffeine, Sodium Hyaluronate, Sodium Sulfite, Disodium EDTA, Glutathione, Adenosine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Squalane, Tocotrienols, Tocopherol, Arginine, Niacinamide, Pentylene Glycol, Glycyrrhiza Glabra Root Extract.

Key Benefits

• Helps brighten dull-looking skin
• Helps improve uneven-looking skin tone
• Helps reduce the appearance of pigmentation
• Provides antioxidant care
• Supports a more radiant-looking complexion
• Lightweight and fast-absorbing

Product Details

• Brand: COSRX
• Product Type: Vitamin C Serum
• Key Active: 13% Pure Vitamin C
• Texture: Lightweight, watery serum
• Best For: Dullness and uneven-looking tone

Directions for Use

After cleansing, apply a few drops during the serum step. Gently massage from the center of the face outward until absorbed.

During the day, follow with sunscreen. Avoid combining in the same routine with strong exfoliating acids or retinoids if your skin is sensitive.

Orders are processed within 1–2 business days. Delivery usually takes 3–7 business days depending on your location, and you'll receive a tracking number as soon as your order ships.

Unopened, unused products in their original packaging can be returned within 30 days of delivery. Opened skincare can't be returned for hygiene reasons, unless it arrived damaged, faulty or wrong; then we replace or refund it. See our refund policy for full details.