COSRX Vitamin C 23 Serum

COSRX The Vitamin C 23 Serum is a potent brightening serum formulated with 23% pure vitamin C (ascorbic acid) to visibly improve skin tone, reduce hyperpigmentation, and boost collagen production. Enhanced with super vitamin E and hyaluronic acid, this concentrated formula fights signs of aging, brightens dull skin, and creates a radiant, youthful complexion with consistent use.

Key Benefits

1. Contains 23% pure vitamin C for maximum brightening
2. Fades dark spots and hyperpigmentation
3. Boosts collagen production and firms skin
4. Reduces fine lines and wrinkles
5. Evens skin tone for radiant complexion
6. Enhanced with vitamin E and hyaluronic acid

How to Use

After cleansing and toning, apply 2-3 drops to face, avoiding eye area. Gently pat until absorbed. Start with 2-3 times per week, gradually increasing frequency as skin adjusts. Use in evening routine. Always follow with SPF in the morning. Can cause tingling sensation initially.

Best For (Skin Type)

All skin types seeking brightening and anti-aging benefits, especially dull, aging, or hyperpigmented skin. Not recommended for very sensitive skin due to high vitamin C concentration.

Key Ingredients

1. Pure Vitamin C 23% (Ascorbic Acid) - Brightens, evens tone, boosts collagen
2. Super Vitamin E (Tocopherol) - Antioxidant protection and nourishment
3. Hyaluronic Acid - Hydrates and plumps skin
4. Allantoin - Soothes and calms irritation
5. Niacinamide - Additional brightening support

Skincare Routine Step

Step 4 - Apply after toner and essence, before moisturizer in your evening routine

Use This With

1. COSRX Advanced Snail 96 Mucin Power Essence (hydration boost)
2. SPF during daytime (essential with vitamin C)
3. COSRX Hyaluronic Acid 3 Serum (hydration)
4. Gentle cleanser to avoid over-exfoliation