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The Niacinamide 15 Serum, 0.67 oz.

Available at 4 stores

Best price · JCPenney $25.00
Nordstrom $25.00
Nordstrom Rack $25.00

Prices as of September 26, 2026, as listed by each retailer — verify the current price on the retailer's site before purchase.

Price history tracked at JCPenney price trackerNordstrom price trackerNordstrom Rack price trackerMacy's price tracker

14-day low
$25.00
Sep 13 · JCPenney
Best price
$25.00
−0% vs high
14-day high
$25.00
All stores
$25$25$25
Sep 13Sep 26
  • JCPenney
  • Nordstrom
  • Nordstrom Rack
  • Macy's
Lowest in 14 days: $25.00 at JCPenney. Highest: $25.00. Current best is 0% below the 14-day high.

What buyers say

AI summary · 1,777 reviews

A well-formulated niacinamide serum that many buyers praise for reducing pores, improving skin texture, and delivering a glowing complexion. Some buyers report irritation or breakouts, but the overall sentiment remains positive with a caveat about sensitivity.

Liked

  • Smooth, lightweight texture
  • Effective pore reduction
  • No residue after absorption
  • Fragrance-free formula

Complaints

  • Unpleasant smell
  • Causes skin irritation and breakouts
  • Feels sticky on skin
  • Cloudy or chunky product consistency

Generated by AI from real customer reviews at Macy's and JCPenney — may miss nuance. Summarized Sep 2026.

About this product

Cosrx The Niacinamide 15 Serum is a highly concentrated facial serum formulated with 15% niacinamide to address acne-prone skin. It works to control sebum production, reduce inflammation, and fade post-acne marks. Synergistic ingredients like N-Acetylglucosamine and Zinc PCA help improve hyperpigmentation and skin recovery. Allantoin supports collagen synthesis for skin regeneration. The serum is non-comedogenic and suitable for combination, normal, and oily skin types. It can be used both morning and afternoon, with SPF protection recommended when used during the day.

  • 15% niacinamide concentration
  • Non-comedogenic tested
  • For acne-prone skin
  • Can be used morning and night
  • Contains zinc pca and nag
  • Cruelty-free formulation

Based on 1,777 reviews at Macy's and JCPenney

Read reviews on Macy's

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The Niacinamide 15 Serum, 0.67 oz. — Compare Prices at 4 Stores