High-Potency Brightening Serum with Pure Vitamin C
Formulated with 23% pure ascorbic acid (vitamin C), this powerful serum targets uneven skin tone, dullness, fine lines, and dark spots. COSRX Vitamin C 23 Serum combines high-concentration vitamin C with moisturizing ingredients to help reveal a smoother, brighter, and more radiant complexion.
To help maintain ingredient stability, the formula features a dual-layered texture with a lightweight oil layer on top, delivering moisture and minimizing oxidation over time.
Recommended For:
- Experienced vitamin C users
- Targeted care for hyperpigmentation, uneven tone, and early signs of aging
- Those looking for intensive brightening and revitalizing effects
Key Benefits:
- Helps brighten dull skin and visibly fade dark spots
- Improves skin texture and elasticity
- Supports a smoother, more even-toned complexion
- Lightweight, moisturizing finish with quick absorption
- Can be used day or night (SPF recommended during daytime use)
Texture:
Dual-phase formula (oil + serum) that blends into a silky texture and absorbs smoothly into skin without greasiness.
Color:
Light yellow tint due to the high content of pure vitamin C.
How to Use:
After cleansing, during the serum step, gently shake the bottle and apply a few drops to the face. Pat gently until absorbed. Use once or twice daily. For morning use, follow with sunscreen (SPF 30+).
Storage Tips:
- Store in the refrigerator (3–10°C) after opening
- Use within 2 months of opening
- Insert dropper after first use for freshness
Key Ingredients:
- 23% Pure Vitamin C (Ascorbic Acid): Brightens skin, helps reduce dark spots, and supports elasticity
- Super Vitamin E (Tocotrienol): Antioxidant-rich, supports collagen and skin defense
- Hyaluronic Acid: Deep hydration and moisture retention
- Allantoin: Soothes and comforts irritated skin
