Total Breakout Care & Oil Control
COSRX’s The Niacinamide 15 Serum is formulated with 15% niacinamide. paired with zinc PCA to deeply refine the appearance of pores. regulate excess sebum. and help reduce the look of post-acne marks. Ideal for oily. combination or blemish-prone skin. it delivers a clearer. smoother. more even complexion with continued use.
*Non-comedogenic tested – doesn’t clog the pores.
Size : 20ml / 0.67 fl. oz



































![Master Patch Basic [90ea]](https://www.cosrix.top/wp-content/uploads/2026/03/master-patch-basic-90ea-cosrx-official-1-300x300.jpg)





![Master Patch Basic [36ea]](https://www.cosrix.top/wp-content/uploads/2026/03/master-patch-basic-36ea-cosrx-official-1-300x300.jpg)



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