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Sunday Riley

U.F.O. Ultra-Clarifying Face Oil

$80·35 ml·~$21/mo to use

Reviewed by SerumTruth Editorial · Price and formula checked July 2026

An unusual oil format for a salicylic acid product, and a smart one, putting a disclosed 1.5% BHA into an oil aimed at the look of clearer pores on oilier skin. The prestige price is the catch against cheaper BHA liquids, but the disclosure and the fast-absorbing feel set it apart. A likeable option if a lightweight oil suits your routine.

What we like
  • Every active discloses its concentration
SerumProof score74 / 100
  • Evidence21 / 30

    Strength of the research behind the key actives

    • Salicylic Acid: moderate evidence

    The average of the key actives’ evidence grades.

  • Potency21 / 25

    Dosed at studied levels, not fairy-dusted

    • Salicylic Acid (1.5%): 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.

  • 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.

  • Value12 / 15

    What a month of use costs vs. the category

    • About $21 per month to use
    • $80 for 35 ml, used about once a day (about 0.3 ml each time), so a bottle lasts about 3.9 months
    • Frequency is set by Salicylic Acid, which is used no more than 7x a week, so a bottle stretches further

    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 #18 of 26 exfoliating acids serums we have scored.

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What’s inside

ActiveDisclosedDose
Salicylic Acid1.5%Studied

A quick-drying clarifying face oil with a disclosed 1.5% salicylic acid, supported by tea tree oil, black cumin seed oil, licorice and hexylresorcinol for the appearance of a clearer, more even-looking complexion, in a tinted green-glass dropper. Delivering an oil-soluble BHA in an oil base is a sensible match for congested-looking pores, and 1.5% sits within the studied leave-on range. Salicylic acid is stable, so the tinted glass is not a liability here.

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

A 1.5% salicylic acid cream was linked to visibly clearer looking, blemish-prone skin after 4 weeks in an open clinical study.

Clinical evidence on the efficacy and safety of an antioxidant optimized 1.5% salicylic acid (SA) cream in the treatment of facial acne: an open, baseline-controlled clinical study. Skin Research and Technology, 2013. 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.