COSRX The Niacinamide 15 Serum 20ml

Struggling with enlarged pores, excess oil, and dull skin?

Oily and combination skin deals with unwanted shine, visible pores, and stubborn breakouts every single day. Most serums don't cut it — you need high-concentration actives that actually work deep in the skin.

The solution: COSRX The Niacinamide 15 Serum

Powered by 15% Niacinamide and Zinc PCA, this high-potency serum regulates sebum production, minimizes pores, and visibly evens out skin tone — results you can see within the first few weeks.

• 🧴 15% Niacinamide — reduces pore appearance, controls oil, and evens skin tone
• ⚡ Zinc PCA — enhanced sebum-regulating action, ideal for oily skin
• ✨ Acetyl Glucosamine — smooths texture and brightens complexion
• 💧 Trehalose + Allantoin — lightweight hydration that keeps skin balanced
• 🌿 Non-comedogenic, lightweight formula — suitable for morning and evening use
• 📦 20ml travel size — perfect for on-the-go or to try before committing to full size

Less shine. Smaller pores. Even complexion. That's the power of 15%.

How to use

After cleansing, during the serum step, apply a few drops to the face. Gently massage with fingertips from the center outward. Can be used morning and/or evening — if used in the morning, always follow with SPF 30 or higher.

Key Ingredients

Water, Pentylene Glycol, Niacinamide (15%), Butylene Glycol, Acetyl Glucosamine, Zinc PCA, Trehalose, Allantoin, Tocopherol