COSRX The Vitamin C 23 Serum 20g

Overview

COSRX The Vitamin C 23 Serum is a highly concentrated brightening serum formulated with 23% stabilized pure Vitamin C. Designed to improve skin tone, reduce the appearance of wrinkles, and target dull and rough skin, this powerful vitamin C booster features a unique two-layer formula — with oil on top of the serum — to slow oxidation and deliver a moisturizing finish. A premium addition to any Korean skincare routine targeting advanced brightening and anti-aging.

Key Features

• 23% stabilized pure Vitamin C — ultra-high concentration brightening booster
• Unique two-layer formula (oil + serum) to prevent oxidation
• Improves skin tone and targets dullness and rough texture
• Delivers a moisturizing, luminous finish
• Free from parabens and artificial fragrance
• Dermatologist tested

Benefits

• Visibly brightens and evens out skin tone
• Reduces the appearance of fine lines and wrinkles
• Targets dull, rough, and uneven skin texture
• Protects skin against free radical and environmental damage
• Boosts collagen synthesis for firmer, more youthful skin

How to Use

Shake the bottle gently before use to mix the two layers. After cleansing and toning, apply 2–3 drops of COSRX The Vitamin C 23 Serum onto face and neck. Gently pat until fully absorbed. Use in the morning before moisturizer and SPF. Store in a cool, dark place to preserve potency. Avoid combining with strong actives such as AHA/BHA or retinol in the same routine.

Ingredients

Ascorbic Acid (23%), Ethyl Ascorbic Acid, Niacinamide, Sodium Hyaluronate, Panthenol, Allantoin, Betaine, Squalane, 1,2-Hexanediol, Adenosine. Full ingredient list may vary — please refer to product packaging.