Description
DESCRIPTION
The COSRX Advanced Vitamin C 23 Serum is a high-concentration brightening treatment formulated with 23% pure Vitamin C to target stubborn hyperpigmentation, acne scars, and early signs of aging. It is designed to deliver a visible intense glow while improving skin elasticity and texture.
KEY INGREDIENTS AND BENEFITS
- 23% Pure Vitamin C (L-Ascorbic Acid): Acts as a potent antioxidant that fades dark spots and stimulates collagen production to firm and plump the skin.
- Super Vitamin E (Tocotrienol): This ingredient has up to 50 times the antioxidant activity of standard tocopherol, enhancing anti-aging effects.
- Hyaluronic Acid & Allantoin: These ingredients provide deep hydration and soothe the skin, helping to minimize the irritation often associated with high-strength Vitamin C.
- Glutathione: Works alongside Vitamin C to brighten the complexion and defend against environmental damage.
ESSENTIAL USAGE AND STORAGE
- Shake the bottle lightly side to side once or twice before use.
- Apply 2–3 drops to cleansed, dry skin, avoiding the eye area.
- If used in the morning, always follow with SPF 30 or higher to protect the skin from UV sensitivity. Avoid mixing with other strong actives like retinol or AHAs in the same session.



