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As of May 13, 2026, The Niacinamide 15 Serum 2-Pack is cheapest at COSRX Official for $42.50.
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
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No price drops in the last 90 days. The all-time low was $42.50 at COSRX Official on March 16, 2026.
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Find The Niacinamide 15 Serum 2-Pack on Alencia — currently available at one retailer. Set a free price alert and get notified the next time the price drops.
