Product features ##features## High-strength 15% niacinamide serum designed to target excess oil and blemishes Helps reduce visible pores and improve overall skin clarity Lightweight, fast-absorbing formula suitable for daily use ##end-features## Product description A powerful niacinamide serum that helps balance oil, clear blemishes and refine the look of pores. COSRX The Niacinamide 15 Serum is a concentrated treatment formulated to address congestion, excess sebum and uneven skin tone. With 15% niacinamide, this serum helps regulate oil production, minimise the appearance of pores and reduce redness associated with breakouts. The formula works to support a clearer, smoother complexion while enhancing the skin’s natural barrier function. Despite its high strength, the lightweight serum absorbs quickly and layers comfortably with other skincare products. Ideal for oily, combination and blemish-prone skin, it helps improve clarity and texture with regular use. Over time, the complexion appears more balanced, refined and visibly brighter. Features of COSRX The Niacinamide 15 Serum Targets excess oil production for a more balanced complexion Helps reduce blemishes and visible congestion Supports improved texture and pore appearance Suitable for oily, combination and blemish-prone skin types ##accordion-start## Specifications Size: 20ml serum Key components: 15% niacinamide with soothing and barrier-supporting agents ##accordion-item-end## Suitable for Oily, combination and breakout-prone skin seeking clarity and oil control ##accordion-item-end## Warnings and cautions For external use only; avoid contact with eyes. Introduce gradually if sensitive to high-strength actives. Discontinue use if persistent redness or irritation occurs. Store in a cool, dry place away from heat and sunlight. ##accordion-item-end## How to use Apply a few drops to clean, dry skin after cleansing and toning. Gently pat until absorbed, then follow with moisturiser. ##accordion-item-end## Ingredients Contains 15% niacinamide alongside hydrating agents, soothing components and texture-refining ingredients formulated to balance oil, improve clarity and refine pores. ##accordion-item-end## ##delivery-accordion## ##accordion-end##