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The Ordinary

Azelaic Acid Suspension 10%

$12.2·30 ml·~$7/mo to use

Reviewed by SerumTruth Editorial · Price and formula checked July 2026

A cheap, honestly dosed way to work azelaic into a routine for the look of a more even complexion. The texture is divisive and it is a cosmetic-strength suspension, not the prescription kind. At this price, with the percentage on the label, it is easy value.

What we like
  • Azelaic Acid dosed at a clinical, high-end level
  • Every active discloses its concentration
  • Cheap to use, about $7 a month
SerumProof score81 / 100
  • Evidence21 / 30

    Strength of the research behind the key actives

    • Azelaic Acid: moderate evidence

    The average of the key actives’ evidence grades.

  • Potency25 / 25

    Dosed at studied levels, not fairy-dusted

    • Azelaic Acid (10%): dosed at a clinical, high-end level for its category

    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: opaque tube
    • No fragile actives here, so packaging barely moves the score.

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

  • Formulation6 / 10

    Disclosure, active breadth, and ingredient generation

    • 1 of 1 actives disclose a concentration
    • 1 key active (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 $7 per month to use
    • $12.2 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 26 exfoliating acids serums we have scored.

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What’s inside

ActiveDisclosedDose
Azelaic Acid10%Clinical

10% azelaic acid disclosed in a light cream-gel suspension that dries to a faint smoothing finish, in an opaque tube. Cosmetically it is aimed at the appearance of a clearer, more even-looking complexion; the higher-strength versions you may have heard about are prescription drugs, not this. Azelaic is not notably air- or light-sensitive, so the tube is plenty. It can pill under makeup and the grainy slip is a love-it-or-hate-it texture.

Safety lens: every ingredient in this formula, graded on the safety evidence at PlainBody ↗, our sister site.

How it’s delivered

DeliveryStandardPackagingOpaque tube

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

A 20% azelaic acid cream was linked to visibly fewer blemishes on blemish-prone skin over 2 months versus a non-active cream.

Clinical and laboratory studies on treatment with 20% azelaic acid cream for acne. Acta Dermato-Venereologica Supplementum, 1989. 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

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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.