COSRX Advanced The Vitamin C 23 Serum

COSRX The Vitamin C 23 Serum is a high-strength vitamin C serum formulated with 23% Pure Vitamin C (Ascorbic Acid), Super Vitamin E, and Glutathione to address dullness, uneven tone, and the visible signs of early aging. The formula also contains Niacinamide, Adenosine, Panthenol, Allantoin, and Hyaluronic Acid, bringing brightening, smoothing, and moisture-supporting care into one treatment. Its dual-layer texture combines oil and serum phases for a smooth finish.

Designed for experienced vitamin C users, this COSRX Vitamin C 23 Serum focuses on dark spots, post-breakout marks, rough texture, and lack of radiance. The high concentration of pure vitamin C makes it a more intensive addition to a brightening routine, while Squalane, Sodium Hyaluronate, and antioxidant-rich ingredients help balance the treatment with conditioning and hydration.

High-Potency Vitamin C For Brighter-Looking Skin

• 23% Pure Vitamin C provides concentrated brightening care for dull skin and uneven-looking tone.
• Super Vitamin E (Tocotrienol) and Glutathione create an antioxidant-focused pairing around the vitamin C.
• Niacinamide and Adenosine complement the formula’s focus on a smoother, firmer-looking complexion.
• Hyaluronic Acid, Panthenol, and Allantoin add moisture-supporting and skin-comforting elements.
• Squalane contributes a conditioning feel to the serum’s layered oil-and-serum texture.

Other Details

• Product type: Vitamin C facial serum
• Key ingredients: Super Vitamin E, Glutathione, Niacinamide, Adenosine, Hyaluronic Acid
• Supporting ingredients: Panthenol, Allantoin, Squalane, Sodium Hyaluronate
• Texture: Dual-layer oil and serum
• Vitamin C concentration: 23% Pure Vitamin C
• Skin concerns: Dullness, uneven tone, dark spots, post-breakout marks, early signs of aging
• Formula Benefit: Non-comedogenic, low-irritation
• Size: 20g