For the broader concentration question, see 5% vs 10% Niacinamide Serum.
Niacinamide concentration
The product names declare 5% and 10% niacinamide respectively. That is the clearest quantitative difference, but not the only formula difference.
Supporting ingredient systems
Minimalist Niacinamide 5%
The brand highlights bifida ferment lysate, oat extract and hyaluronic acid. Minimalist describes the formula as fragrance free and non-comedogenic and positions it toward consumers who want a lower niacinamide concentration.
Minimalist Niacinamide 10%
The 10% formula contains niacinamide alongside Matmarine, Zinc PCA, Zinc Glycinate, acetyl glucosamine, allantoin and sodium hyaluronate in the published ingredient list. Minimalist currently states a pH range of 5.5–6.5.
Pack sizes
Minimalist currently shows 10 ml, 20 ml, 30 ml and 60 ml variants for the 10% serum. Pack options for the 5% version differ, so direct value comparisons should use the exact SKU and current price per ml.
What not to infer
The 10% number should not be treated as a quality score, and the 5% number should not automatically be treated as a weaker or inferior product. Formula context matters.
Official sources
Last checked: 26 September 2026. Product formulas, pricing and pack options can change.