Cosrx The Niacinamide 15 Serum 20ml

High-concentration 15% niacinamide in a lightweight, fast-absorbing formula targets dullness, enlarged pores, and surface oil without weighing down the skin.

Formulation & Texture

This 20 mL facial serum features a minimalist, ingredient-forward blend designed to deliver essential actives while supporting your skin barrier. The fluid consistency spreads effortlessly across the face, absorbing quickly so you can follow up immediately with moisturizer or sunscreen.

Key Benefits

• Evens overall complexion and fades post-breakout discoloration
• Refines the appearance of pores through consistent surface balancing
• Helps regulate sebum production for smoother, matte-finish skin
• Compatible with normal, oily, and combination skin types

COSRX formulates with a concise routine in mind, avoiding unnecessary fillers so the active concentration does the work. For best results, apply three to five drops to clean skin after your toner step. Gently press into the face morning or evening, then seal with an occlusive moisturizer. During daytime use, always finish with broad-spectrum sunscreen. If you are introducing a high-strength active for the first time, perform a patch test behind the ear or on the jawline before full facial application.