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The Inkey List

Niacinamide

$13·30 ml·~$8/mo to use

Reviewed by SerumTruth Editorial · Updated July 2026

A no-nonsense niacinamide at a rock-bottom price, honestly dosed and disclosed. The evidence is solid rather than dramatic, and 10% is more than some skin needs. As a cheap way to add a well-tolerated multitasker, it does the job.

SerumProof score81 / 100
  • Evidence21 / 30

    Strength of the research behind the key actives

    • Niacinamide: moderate evidence
    • Hyaluronic Acid: moderate evidence
    • Score is the average of the key actives’ evidence grades.
  • Potency24 / 25

    Dosed at studied levels, not fairy-dusted

    • Niacinamide (10%): dosed at a clinical, high-end level for its category
    • Hyaluronic Acid (1%): dosed at a studied level
    • Potency tracks how strongly the actives are dosed, led by the strongest, not how many there are.
  • Delivery & stability14 / 20

    Delivery tech + packaging that protects fragile actives

    • Delivery: standard
    • Packaging: tinted glass
    • No fragile actives here, so packaging barely moves the score.
  • Formulation7 / 10

    Disclosure, active breadth, and ingredient generation

    • 2 of 2 actives disclose a concentration
    • 2 key actives (breadth credit caps at 3)
    • No current-generation or synergy bonus
  • Value15 / 15

    What a month of use costs vs. the category

    • About $8 per month to use
    • $13 for 30 ml, used about twice a day (about 0.3 ml each time), so a bottle lasts about 1.7 months
    • Band: $6/month or less earns full marks, $60/month or more hits the floor.

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Where to buy at Sephora

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What’s inside

ActiveDisclosedDose
Niacinamide10%Clinical
Hyaluronic Acid1%Studied

10% niacinamide with 1% hyaluronic acid, both disclosed, in a plain squeeze tube. It is a single-purpose formula aimed at the appearance of an even tone, refined-looking pores and balanced shine, with the HA there for slip and hydration. 10% sits at the assertive end and can pill under other layers or feel like too much for reactive skin. Neither active is fragile, so the tube is plenty.

How it’s delivered

DeliveryStandardPackagingTinted glass

Air- and light-sensitive actives (vitamin C, copper peptides) lose potency fast in the wrong packaging, so delivery and the bottle are scored, not just what’s on the label.

The actives, explained

Cosmetic information for general education, not medical advice. The SerumProof score reflects our reading of publicly available research and formulation disclosures. See how scoring works.