COSRX - The Vitamin C 13 Serum (20ml)

The COSRX The Vitamin C 13 Serum is a gentle, water‑based daily Vitamin C treatment designed to brighten, hydrate, and refine the skin without irritation. Formulated with 13% pure Vitamin C, this lightweight serum absorbs quickly with a refreshing, non‑sticky finish, making it ideal for everyday use—even for sensitive skin. Its stabilized formula helps fade blemishes, dark spots, freckles, and uneven tone while delivering visible radiance and firmness.

Clinically proven results show an instant hydration boost of +113.7% after one use, along with improvements in surface pigmentation (-16.07%), subsurface pigmentation (-12.22%), redness (-31.92%), and dullness (+3.94%). After one week, pores appear visibly refined with reductions in pore volume (-38.15%), pore area (-36.05%), pore count (-28.45%), and pore depth (-13.01%). Early‑aging concerns also improve, including wrinkles (-10.64%), external elasticity (+19.64%), and internal elasticity (+14.07%), with antioxidant protection lasting up to 120 hours.

To enhance performance, the serum combines Vitamin C with Super Vitamin E (Tocotrienol), Tocopherol, Glutathione, Niacinamide, and Adenosine for antioxidant synergy, firmness, and brightening. Panthenol, Hyaluronic Acid, and Allantoin provide soothing hydration for a comfortable daily experience.

Perfect for targeting hyperpigmentation, dullness, and early aging, the COSRX Vitamin C 13 Serum delivers clearer, brighter, smoother skin with consistent use.

Active Ingredients : Ascorbic acid (vitamin C), Butylene Glycol, Panthenol, Caffeine, Sodium Hyaluronate, Allantoin, Squalane, Tocopherol (Vitamin E), Palm Kernel Oil, Arginine, Niacinamide y Licorice Root 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.