Product Description
COSRX The Vitamin C 23 Serum is a high-concentration facial serum formulated with 23% pure vitamin C to effectively target hyperpigmentation, acne scars, uneven skin tone, dullness, and early signs of aging. This potent, antioxidant-rich formula visibly brightens the skin, helps fade dark spots and post-acne marks, and protects against free radical and environmental damage. By stimulating collagen production, it improves skin firmness and elasticity while restoring a radiant, healthy glow.

In addition, the formula is enriched with sodium hyaluronate, a deeply hydrating ingredient that replenishes moisture, enhances suppleness, and helps maintain a balanced skin barrier. Despite its powerful concentration, the serum features a lightweight texture that absorbs quickly without stickiness, making it suitable for most skin types when introduced gradually into your routine.

Key Benefits

• High-strength 23% pure vitamin C for visible brightening

• Reduces hyperpigmentation, dark spots, and post-acne scars

• Improves skin tone, radiance, and texture

• Provides antioxidant protection against free radicals and pollution

• Stimulates collagen production for firmer, more elastic skin

• Hydrates and plumps with sodium hyaluronate

• Lightweight texture absorbs quickly without greasiness

• Ideal for dull, uneven, or aging skin

How To Use
After cleansing and toning, apply a few drops onto damp skin. Gently massage until fully absorbed.
Important: Start by using 2–3 times per week, then gradually increase frequency if well tolerated. Always apply sunscreen (minimum SPF 30) during the day when using vitamin C products.

Product Details
Size: 20 g
Type: High-concentration brightening serum
Best For: Dull, uneven, pigmented, or aging skin