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The Ordinary · Serums

Niacinamide 10% + Zinc 1%

$6·30 ml·Leave-on
100
Low concern

Why this score

Concern55 / 55
  • No ingredients carry meaningful, evidence-backed concern.

How much genuine, cited concern the ingredients carry, weighted by how much of each is likely present and whether the product stays on or rinses off.

Transparency20 / 20
  • No hidden fragrance blend.

Whether the full ingredient list, and any fragrance, are actually disclosed.

Formulation restraint25 / 25
  • No needless irritants or fragrance allergens for this product type.

Needless irritant or allergen load for the product type. A clean, purposeful formula scores well without any "free-from" theater.

Reviewed by PlainBody Editorial · Updated July 2026

What’s inside

  • WaterGenerally safe
  • NiacinamideGenerally safe
  • GlycerinGenerally safe
  • Below the 1% line

  • Hyaluronic AcidGenerally safe
  • PhenoxyethanolFearmongered, actually fine
  • Citric AcidGenerally safe
  • Efficacy lens: we rate what is in it; for whether this formula is likely to work, see its SerumProof review at SerumTruth ↗, our sister site.

    Some links are affiliate links. They never change a score.

    Cosmetic information for general education, not medical advice. Concern ratings are evidence-graded and cited on each ingredient page. See how we score.