• COSRX Advanced The Vitamin C 23 Serum bottle featuring Super Vitamin E and Hyaluronic Acid; high-potency 23% stabilized Vitamin C formulation designed to brighten dull skin, refine pores, and even skin tone while hydrating; minimal modern K-beauty packaging emphasizing clinical-grade clarity and gentle brightening care.
  • COSRX Advanced The Vitamin C 23 Serum displayed on an icy blue background with clinical proof badges for non-comedogenic, antioxidant, and clinically proven results; formulated with 23% pure Vitamin C to visibly improve tone, glow, and texture while reducing dark spots and refining pores.
  • Advanced The Vitamin C 23 Serum
  • Updated COSRX Advanced The Vitamin C 23 Serum dropper shown releasing golden drops; upgraded dual-layer formula with Super Vitamin E and Hyaluronic Acid offers stronger clinical efficacy, brightening dark spots, and smoothing rough texture for luminous, even skin tone.
  • Clinically proven COSRX Advanced The Vitamin C 23 Serum bottle held in hand, highlighting benefits including antioxidant action, pigmentation reduction, refined pores, improved texture, and radiance; validated by Dermacosmetic Skin Science Lab for clearer, brighter, and firmer skin.
  • Set of COSRX Advanced The Vitamin C 23 Serum bottles with golden background highlighting 23% pure Vitamin C, antioxidant synergy for early-aging prevention, and dual-layer hydration; designed to visibly brighten tone, smooth texture, and reduce hyperpigmentation and pore appearance.
  • Visual of pure ascorbic acid droplets representing the key ingredient in COSRX Advanced The Vitamin C 23 Serum; high-concentration Vitamin C delivers antioxidant, brightening, and firming benefits, helping even skin tone, fade dark spots, and restore healthy glow.
  • Before-and-after photos from COSRX Advanced The Vitamin C 23 Serum clinical study showing visible reduction in blemishes and pigmentation after 4 weeks; results include -17.43% surface pigmentation and +5.02% tone improvement, backed by Dermacosmetic Skin Science Lab testing.
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COSRX Official

Advanced The Vitamin C 23 Serum

Advanced The Vitamin C 23 Serum

$12.60 USD
$20.00 USD $12.60 USD
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Advanced The Vitamin C 23 Serum (Quantity)

Power-Brightening Pure Vitamin C Serum

COSRX’s Advanced The Vitamin C 23 Serum features a high strength 23% pure vitamin C with Super Vitamin E and Glutathione to target uneven skin tone, early signs of aging, and dullness. Ideal for experienced vitamin C users seeking visible brightening and firmer skin, it absorbs smoothly to leave the complexion more radiant, supple, and revitalized.

Size: 20ml / 0.67fl. oz

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