COSRX The Vitamin C 13 serum

Key Elements (The Brightening Trio)

• 13% Pure Vitamin C (L-Ascorbic Acid): A potent antioxidant that visibly brightens skin, improves the appearance of acne scars, and boosts collagen production for a firmer look.
• Super Vitamin E (Tocotrienol): Boasting up to 50 times the antioxidative power of standard Vitamin E, it works in synergy with Vitamin C to shield skin from pollution and UV damage.
• Hyaluronic Acid & Allantoin: These soothing ingredients provide deep hydration and prevent the "stinging" sensation common with Vitamin C, keeping your skin calm and plump.
• Stable Oil-Layer Formula: A unique double-layer structure helps prevent rapid oxidation, ensuring the serum stays fresh and effective longer.

How to Use

1. Cleanse: Start with a clean, dry face.
2. Apply: Shake the bottle gently. Apply 2–3 drops directly to your cheeks and forehead.
3. Massage: Gently massage into the skin using circular motions, avoiding the eye area.
4. Protect: If using in the morning, always follow with an SPF 30+. Vitamin C makes your skin more sensitive to the sun.

Storage Tip: To keep the formula potent, store the bottle in a cool, dark place (like the refrigerator) and keep the cap tightly closed after each use.