The Vitamin C 13 Serum

This daily brightening serum from COSRX delivers 13% pure Vitamin C (Ascorbic Acid), a potent antioxidant that helps fade dark spots and boost overall radiance.

The lightweight formula absorbs quickly and pairs two forms of Vitamin C with hydrating ingredients like hyaluronic acid and panthenol for a balanced approach to brighter-looking skin.

Who is This For?

Suitable for all skin types looking to address dullness, uneven tone, or early signs of aging.

Especially helpful if you're dealing with dark spots or hyperpigmentation, but works well as a daily antioxidant boost for anyone.

Key Benefits

• Helps brighten and even out skin tone with 13% pure Ascorbic Acid
• Provides extended antioxidant support through a stable Vitamin C derivative
• Supports hydration and skin barrier function with Sodium Hyaluronate and Panthenol
• Contains Niacinamide and Licorice Root to help address discoloration

Key Ingredients

• Ascorbic Acid (13%) — Pure Vitamin C that delivers antioxidant protection and helps brighten skin
• 3-O-Ethyl Ascorbic Acid — A stable Vitamin C form that extends brightening benefits over time
• Niacinamide — Helps improve uneven tone and supports a healthy skin barrier
• Sodium Hyaluronate — Draws moisture into skin for lasting hydration
• Licorice Root Extract — Helps calm and even out skin tone