The COSRX 15% Niacinamide Face Serum is a concentrated serum formulated to support pore appearance and skin texture. Each 0.67 fl oz bottle delivers a 15% niacinamide concentration, an ingredient recognized for its role in promoting a more even skin tone and refining pore visibility. The serum also includes zinc PCA, which helps manage sebum production without stripping the skin, making it particularly suited for oily, combination, and acne-prone skin types.

The lightweight, water-like texture absorbs quickly and leaves minimal residue, fitting seamlessly into both morning and evening routines. It is designed for use after cleansing and before moisturizing, and can be layered with other serums as part of a comprehensive skincare regimen. The formula is free from parabens, sulfates, and artificial fragrances, prioritizing gentle efficacy for sensitive skin.

The 15% concentration targets those familiar with niacinamide who seek a higher dosage for noticeable improvements in pore clarity and uneven tone. COSRX emphasizes minimal irritation through its simple ingredient list, avoiding common irritants. This serum offers a practical solution for managing excess shine and reducing the look of enlarged pores over consistent use. Its affordable price point positions it as an accessible option for daily care without compromising on active ingredient strength. Suitable for both beginners and experienced users, it maintains a balanced approach to brightening and pore refinement without exaggerated promises.