COSRX The Vitamin C 23 Serum — Pure Vitamin C Brightening & Anti-Aging Serum
A highly concentrated vitamin C serum formulated with 23% pure L-ascorbic acid to dramatically brighten skin, fade dark spots and hyperpigmentation, and improve overall skin tone and texture while providing powerful antioxidant protection. COSRX The Vitamin C 23 Serum delivers professional-strength vitamin C in a stabilized formula that penetrates deeply to transform dull, uneven skin into a radiant, luminous complexion.
This potent serum combines pure vitamin C with hyaluronic acid to ensure the skin remains hydrated and comfortable despite the high concentration of active ingredients. The slightly viscous, oil-like texture absorbs thoroughly, allowing vitamin C to work its magic on stubborn dark spots, acne scars, sun damage, and signs of aging. With consistent use, skin becomes noticeably brighter, more even-toned, and visibly firmer with reduced fine lines and improved clarity.
Perfect for those serious about tackling hyperpigmentation, dullness, and aging concerns, this high-performance serum delivers visible results that transform your complexion over time.
Why You'll Love It
- Professional-strength 23% pure vitamin C
- Dramatically brightens and evens skin tone
- Fades stubborn dark spots and acne scars
- Visible results with consistent use
- Stabilized formula for maximum efficacy
Key Benefits
✔ Brightens dull, uneven complexion
✔ Fades dark spots, hyperpigmentation, and acne scars
✔ Reduces fine lines and improves firmness
✔ Provides powerful antioxidant protection
✔ Evens skin tone and improves clarity
Key Ingredients & What They Do
🍊 Pure Vitamin C / L-Ascorbic Acid (23%)
- Dramatically brightens skin and fades dark spots
- Reduces hyperpigmentation and acne scars
- Boosts collagen production for firmer skin
- Improves skin texture and reduces fine lines
- Provides powerful antioxidant protection against free radicals
- Evens skin tone and enhances radiance
💧 Hyaluronic Acid
- Hydrates and plumps the skin
- Prevents dryness from vitamin C
- Maintains moisture balance
- Keeps skin comfortable and smooth
🌿 Tocotrienol (Super Vitamin E)
- Enhances antioxidant protection
- Works synergistically with vitamin C
- Protects against environmental damage
How To Use
- Apply after cleansing and toning, before heavier serums
- Dispense 2-3 drops onto palm
- Gently pat and press into skin, focusing on areas with dark spots
- Allow to absorb fully before applying next products
- Use once daily, preferably in the evening
- IMPORTANT: Always follow with SPF 30+ during the day
- For first-time vitamin C users, start 2-3 times per week and gradually increase
- Store in a cool, dark place to maintain stability
Skin Type
✔ All skin types (except very sensitive)
✔ Dull, uneven skin tone
✔ Hyperpigmentation and dark spots
✔ Acne scars and post-inflammatory marks
✔ Aging skin with fine lines
✔ Sun-damaged skin
Texture & Finish
- Slightly viscous, oil-like serum
- Absorbs thoroughly with gentle patting
- May feel slightly tacky initially
- Leaves skin smooth once absorbed
- Natural vitamin C color (slightly yellow/amber)
Free From
- Water (anhydrous formula for stability)
- Parabens
- Sulfates
- Artificial fragrance
- Phthalates
Size: 20ml / 0.68 fl oz