Cosrx - Advanced The Vitamin C 23 Serum

The COSRX Advanced The Vitamin C 23 Serum is a high‑potency brightening treatment powered by 23% pure Vitamin C to target stubborn blemish marks, uneven tone, dullness, and early signs of aging. This upgraded formula delivers exceptional results, clinically proven to improve blemish marks by 8.87%, skin transparency by 15.06%, deep melanin by 14.15%, skin radiance by 34.81%, and skin texture by 92.32%. It also boosts surface elasticity by 15.07%, helping the skin appear firmer and more refined.

Designed with a low‑irritation dual‑layer texture, the serum stabilizes high‑concentration Vitamin C for maximum efficacy. It provides 5‑fold blemish improvement, including 17.43% reduction in blemish area, 12.05% improvement in tone evenness, 30.14% reduction in redness, 9.51% improvement in yellowness, and 4.05% improvement in dull tone after four weeks. Pore concerns also improve significantly, with 38.15% reduction in pore volume, 36.05% in pore area, 28.45% in pore number, and 13.01% in pore depth.

Enhanced with Super Vitamin E (Tocotrienol), Tocopherol, Glutathione, Niacinamide, Adenosine, Panthenol, Hyaluronic Acid, and Allantoin, it delivers powerful antioxidant synergy, elasticity care, brightening, and soothing hydration. Clinically tested for sensitive skin, non‑comedogenic, and designed for comfortable daily use, the COSRX Advanced The Vitamin C 23 Serum leaves skin clearer, brighter, smoother, and visibly revitalized.

Active Ingredients : Ascorbic acid (vitamin C), Butylene Glycol, Panthenol, Squalane, Caffeine, Sodium Hyaluronate, Adenosine, Allantoin, Tocopherol (Vitamin E), Palm Kernel Oil, Arginine, Niacinamide, Glutathione, Sunflower seed oil, Safflower Extract, Licorice Root Extract, Carrot Extract

At our core, we proudly represent the best of Korea—sourcing all of our products directly from trusted Korean manufacturers. Unlike many foreign-run platforms that rely on third-party sellers or bulk purchases from trade shows, we personally curate every item we offer to ensure freshness, quality, and authenticity.

We’re aware that some overseas-operated sites source products of questionable origin—often counterfeit items manufactured in places like Hong Kong or China. That’s not what we stand for. Our mission is to offer only genuine, high-quality Korean goods that you can trust.We are here built our reputation on craftsmanship, integrity, and a deep commitment to excellence. We're not a discount store or a reseller platform focused on volume—we serve those who value authenticity, reliability, and premium quality.

Every product we carry is a reflection of our values and our pride in Korean heritage. And should a product ever fall short of our promise of authenticity, we offer a full, no-questions-asked refund—because your trust is everything to us.

We stand behind every item we provide. When you shop with us, you're not just buying a product—you're experiencing the genuine quality and care that defines Korean excellence.