Overview

COSRX The Niacinamide 15 Serum 20ml is a concentrated niacinamide serum for routines focused on oiliness, visible pores, and post-blemish unevenness. The 15% niacinamide level makes it a more active serum than a basic hydrating step.

Why it may suit your routine

• 15% niacinamide serum format.
• Zinc PCA positioning for oil-focused routines.
• 20ml size is compact for targeted face use.
• Useful when you prefer a dedicated serum instead of a niacinamide moisturiser.

Good to know

This is the 20ml Niacinamide 15 Serum option. Introduce gradually if your skin is sensitive, and reduce frequency if you notice flushing, stinging, or dryness.