COSRX The Vitamin C 13 Serum 20ml

Sale Price: $13.90 Original Price: $18.90

A lightweight, water-based Vitamin C serum from COSRX that delivers refreshing hydration without stickiness. Featuring 13 % pure ascorbic acid, it brightens the skin, fades dark spots, and evens out complexion with regular use. Gentler and more moisturizing than its stronger counterpart (the Vitamin C 23 Serum), it's tailored for daily application and improves tone while absorbing quickly.

Skin Treatment Goal: Brightening, Anti-aging, Hydration
Best For: All skin types

A lightweight, water-based Vitamin C serum from COSRX that delivers refreshing hydration without stickiness. Featuring 13 % pure ascorbic acid, it brightens the skin, fades dark spots, and evens out complexion with regular use. Gentler and more moisturizing than its stronger counterpart (the Vitamin C 23 Serum), it's tailored for daily application and improves tone while absorbing quickly.

Skin Treatment Goal: Brightening, Anti-aging, Hydration
Best For: All skin types

 
    • Daily brightening care that fades blemishes, dark spots, freckles, and evens out skin tone

    • Softens fine lines, refines texture, and helps reduce pore appearance

    • Contains 13 % pure Vitamin C, plus tocotrienol (super Vitamin E), hyaluronic acid, and allantoin for antioxidant protection, hydration, and soothing

    • Lightweight, watery—non-greasy—texture; quick absorption

  • 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, Elaeis Guineensis (Palm) Oil, Arginine, Niacinamide, Pentylene Glycol, Glycyrrhiza Glabra (Licorice) Root Extract.

    • Cleanse your face and apply toner.

    • (Optional) Shake the bottle gently 1–2 times to mix—some mild fizzing or scent is normal and indicates active vitamin C

    • Dispense a few drops and gently massage in from the center of your face outward until fully absorbed

    • Use once or twice daily—typically in the morning before moisturizer and SPF for optimal antioxidant benefits

    • Patch test first if you have sensitive skin. Begin with alternate-day use and work up to daily as tolerated

    • Store in a cool, dark place (ideally fridge) and tightly seal after use to preserve vitamin C stability