The COSRX The Vitamin C 23 Serum is a highly concentrated facial treatment designed to target dullness, uneven skin tone, and early signs of aging. Formulated with a potent 23% pure Vitamin C (Ascorbic Acid), this lightweight serum absorbs quickly to deliver a brighter, more radiant, and healthier-looking complexion.

About the Product

This specialized formula maximizes the benefits of pure Vitamin C by pairing it with synergistic ingredients like Tocotrienol (a highly effective form of Vitamin E) and Hyaluronic Acid. Together, they work to protect the skin from environmental stressors, provide deep hydration, and visibly reduce the appearance of dark spots and textural irregularities.

Key Features & Benefits

• Tone Brightening: 23% Pure Vitamin C helps to visibly fade dark spots, hyperpigmentation, and acne marks for a more uniform skin tone.
• Antioxidant Protection: Tocotrienol (Super Vitamin E) works alongside Vitamin C to boost antioxidant efficacy and protect the skin barrier.
• Hydration & Soothing: Contains Sodium Hyaluronate to maintain moisture levels and Allantoin to soothe the skin during the active brightening process.
• Revitalizing: Helps to improve skin elasticity and overall radiance, bringing a healthy glow back to tired skin.

Important Storage & Usage Notes

• Refrigeration Required: Because it contains a high concentration of pure Vitamin C, this serum MUST be stored in the refrigerator immediately after opening to maintain its freshness and efficacy.
• Sun Protection: Always apply a broad-spectrum sunscreen (SPF 30 or higher) during the day when using Vitamin C products.

How to Use

After cleansing and toning, apply a few drops of the serum to the skin. Use your fingertips to gently massage and pat the serum into the face, working from the center outwards. Allow it to fully absorb before applying your moisturizer. For first-time users, a slight tingling sensation is normal. We recommend using it during your morning routine followed by sunscreen, or in your evening routine.

Product Details

• Brand: COSRX
• Product Type: Vitamin C Serum
• Size: 20ml
• Country of Origin: South Korea