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What buyers say
AI summary · 2,667 reviews
A highly effective serum for oily, acne-prone skin that improves texture and reduces shine, though some buyers report irritation and breakouts due to the high 10% niacinamide concentration. A minority find it too harsh, especially with sensitive skin.
Liked
Reduces oiliness and shine
Minimizes pore appearance
Improves skin texture and clarity
Complaints
Causes irritation and burning
Leaves sticky or pilling residue
Triggers breakouts and cystic acne
Unpleasant chemical smell
Generated by AI from real customer reviews at Nordstrom — may miss nuance. Summarized Sep 2026.
About this product
What it is: Niacinamide 10% + Zinc 1% serum is a water-based formula that delivers multiple niacinamide benefits to enhance skin brightness, improve texture, and strengthen the skin’s moisture barrier.
What it does: This serum with niacinamide (vitamin B3) contains a high concentration (10%) as well as Zinc PCA to target dullness, uneven texture, and excess oil. Niacinamide 10% + Zinc 1% also helps reduce the appearance of pores, and instantly boosts skin radiance.
Clinical results: In a clinical study of 35 subjects applying product twice a day for 8 weeks: - Serum achieves visibly improvements in skin, smoothness and hydration within 7 days - Serum gives smoother, more radiant skin - Serum reduces excess oil in 3 days - Serum reduces pore visibility/appearance in 4 weeks - Serum minimizes the appearance of pores - Users experienced smoother, more luminous skin after 7 days of consistent use
How to use: Apply a few drops fo the serum to the face in the morning and evening before applying your heavier creams. This formulation can be used alongside acne treatments if desired for added visible skin benefits.