Cosrx The Vitamin C 23 serum

This concentrated serum is intended for users already comfortable with pure vitamin C. The high ascorbic-acid level targets stubborn uneven tone while vitamin E and humectants support the formula.

Key Benefits

• Ascorbic Acid 23% provides intensive antioxidant and brightening care
• Tocotrienol supports antioxidant stability and skin defense
• Sodium Hyaluronate helps offset a dry feel
• Allantoin supports soothing care

When to Use

Use after toner morning or evening, starting two or three times weekly and increasing only if comfortable.

How to Use

Shake lightly, apply two or three drops to dry skin, avoid eyes, follow with moisturizer, and refrigerate after opening.

Key Ingredients

• Ascorbic Acid 23% — pure vitamin C
• Tocotrienol — vitamin E family
• Sodium Hyaluronate — hyaluronic acid salt
• Allantoin — skin protectant

Precautions

For external use only. Patch test before first full use. Avoid direct eye contact; rinse with water if contact occurs. Discontinue use if irritation develops. Introduce gradually, avoid other strong exfoliants in the same routine, and use sunscreen daily.