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The Inkey List

Niacinamide

$13·30 ml·~$8/mo to use

Reviewed by SerumTruth Editorial · Price and formula checked 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.

What we like
  • Niacinamide dosed at a clinical, high-end level
  • Every active discloses its concentration
  • Cheap to use, about $8 a month
SerumProof score81 / 100
  • Evidence21 / 30

    Strength of the research behind the key actives

    • Niacinamide: moderate evidence
    • Hyaluronic Acid: moderate evidence

    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

    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.

    Delivery tech plus packaging, and packaging only counts when actives are fragile.

  • 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

    Disclosure, active breadth, and current-generation or synergistic actives.

  • 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

    What a month of use costs: full marks at $6 a month or less, the floor at $60 a month or more.

Tap any row to see how its score was built.

Ranks #4 of 56 brightening serums we have scored.

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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

What the research says

Topical 5% niacinamide was linked to more even looking skin tone, softer looking lines, and less visible blotchiness after 12 weeks.

Niacinamide: A B vitamin that improves aging facial skin appearance. Dermatologic Surgery, 2005. PubMed ↗

A multicenter study linked a topical hyaluronic acid serum with better looking hydration, tone, and texture over several follow up visits.

Multicenter evaluation of a topical hyaluronic acid serum. Journal of Cosmetic Dermatology, 2022. PubMed ↗

A study of the active, not this exact product. What matters for the score is whether this serum uses it at a comparable dose.

Higher-scoring alternatives

Same category, better SerumProof score. Worth a look before you buy.

Revision history
  1. July 11, 2026
    Price and formula rechecked
  2. July 10, 2026
    Review published

Spot an error or a reformulation? Tell us and we will fix it.

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.