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COSRX The Niacinamide 15 Serum with dropper and molecular structure, featuring 15% niacinamide blended with Acetyl Glucosamine and Zinc PCA; clinically designed for acne-prone, oily skin to control sebum, reduce large pores, and smooth skin texture; compatible with exfoliating or brightening actives.

COSRX Official

4.5 (123)

The Niacinamide 15 Serum

Name: COSRX Official The Niacinamide 15 Serum - The Niacinamide 15 Serum
Brand: COSRX Official
SKU: 51110452232408
Price: 25.0 USD
Availability: InStock
Rating: 4.8462 (25 reviews)

4.5 (1,234)

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$25.00

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Description

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 mark...

Reviews

4.8

26 ratings

I have only been using this for a few weeks and have noticed improvements. I love the way it makes my skin look, hydrated and glowing. A little goes a long way. I layer this product on top of the snail mucin.

Kelley · June 13, 2026

I am thrilled with this Niacinimide serum and can’t believe how quickly it has benefited my skin. After just a couple of applications I noticed that my skin was clearer and smoother. It is perfect for my combination skin. I have tried several other products to improve my complexion but none have had the positive impact as this serum. I highly recommend it.

Carolyn · June 9, 2026