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Shop Sunday Riley U.F.O. Ultra-Clarifying Acne Treatment Face Oil
Treatment
Sunday Riley

U.F.O. Ultra-Clarifying Acne Treatment Face Oil

~$40· 15mlPM only
AcneVisible poresUneven texture

What it's good for

Key actives from our research database. Click any to read the full evidence dossier.

  • Salicylic AcidStrong evidenceFull dossier ↗

    Goes into your pores and dissolves the oil and dead skin clogging them. Best for blackheads, whiteheads, and oily, acne-prone skin.

    Good for: Anti-acne, Exfoliating

  • Tea Tree OilModerate evidenceFull dossier ↗

    A natural acne spot-treatment that kills the bacteria behind red, painful pimples. Slower than benzoyl peroxide but with fewer side effects when used at 5%.

    Good for: Anti-acne, Anti-inflammatory

  • HexylresorcinolModerate evidenceFull dossier ↗

    A potent dark-spot fader long favored by dermatologists. Pairs strongly with niacinamide for stubborn discoloration without the irritation of hydroquinone.

    Good for: Brightening, Antioxidant

New to this? Patch test on your inner arm for 24 to 48 hours before applying to your face. If you have sensitive skin or rosacea, start 2 to 3 times per week and build up slowly.

Evidence behind the ingredients

Real citations from our research database, one per tracked active in this product. Click any ingredient name to read its full evidence dossier.

Salicylic AcidStrong evidence9 citations

Goes into your pores and dissolves the oil and dead skin clogging them. Best for blackheads, whiteheads, and oily, acne-prone skin.

Liu Y et al., Clinical Efficacy of a Salicylic Acid-Containing Gel on Acne Management and Skin Barrier Function: A 21-Day Prospective Study, Journal of Cosmetic Dermatology 2025;24(7):e70353 — salicylic acid gel reduced acne lesions, regulated sebum, improved hydration and barrier function

2025Positive (efficacy)PMID:40682377View source ↗

Ye R et al., 2% supramolecular salicylic acid hydrogel vs. adapalene gel in mild to moderate acne vulgaris: multicenter, randomized, evaluator-blind, parallel-controlled trial, Journal of Cosmetic Dermatology 2024;23(6):2125-2134 — 2% SSA hydrogel was equally effective as adapalene gel for mild-to-moderate acne

2024Positive (efficacy)PMID:38590107View source ↗

Brumley C et al. Allergic contact dermatitis to salicylic acid: A case series of relevant sensitization. Contact Dermatitis. 2024;91(2):133-138. doi:10.1111/cod.14573 — Case series of 489 patch-tested patients (2020-2024): 21 positive reactions to salicylic acid. Documents that ACD to SA is likely underreported; testing at 5% concentration feasible.

2024Safety assessmentPMID:38686774View source ↗
Tea Tree OilModerate evidence6 citations

A natural acne spot-treatment that kills the bacteria behind red, painful pimples. Slower than benzoyl peroxide but with fewer side effects when used at 5%.

Najafi-Taher R et al., A topical gel of tea tree oil nanoemulsion containing adapalene versus adapalene marketed gel in patients with acne vulgaris: a randomized clinical trial, Archives of Dermatological Research 2022;314(7):673-679 — RCT showed tea tree oil + adapalene nanoemulsion gel produced significantly better reduction in total, inflammatory and non-inflammatory acne lesions than standard adapalene

2022Positive (efficacy)PMID:34251536View source ↗

Zambello A et al. Tea tree oil contact sensitization in children. Contact Dermatitis. 2021;84(2):123-124. doi:10.1111/cod.13699 — Documents allergic contact dermatitis from tea tree oil exposure in pediatric patients identified through patch testing; highlights sensitization risk in children.

2021Safety assessmentPMID:32885466View source ↗

Malhi HK, Tu J, Riley TV, Kumarasinghe SP, Hammer KA, Tea tree oil gel for mild to moderate acne; a 12 week uncontrolled, open-label phase II pilot study, Australasian Journal of Dermatology 2017;58(3):205-210

2017Positive (efficacy)PMID:27000386View source ↗
HexylresorcinolModerate evidence5 citations

A potent dark-spot fader long favored by dermatologists. Pairs strongly with niacinamide for stubborn discoloration without the irritation of hydroquinone.

Wu A, Gabriel V, Burney W, Chambers C, Pan A, Sivamani RK, Prospective, randomized, double-blind clinical study of split-body comparison of topical hydroquinone and hexylresorcinol for skin pigment appearance, Archives of Dermatological Research 2023;315(7):2095-2099 — split-body RCT, 1% hexylresorcinol equivalent to 2% hydroquinone in pigmentation reduction at 4 and 12 weeks

2023Positive (efficacy)PMID:36502500View source ↗

Shariff R et al., Superior even skin tone and anti-ageing benefit of a combination of 4-hexylresorcinol and niacinamide, International Journal of Cosmetic Science 2022;44(1):103-117

2022Positive (efficacy)PMID:34958693View source ↗

Draelos ZD, Diaz I, Cohen A, Mao J, Boyd T, A novel skin brightening topical technology, Journal of Cosmetic Dermatology 2020;19(12):3280-3285 — 12-week clinical trial (n=42) of hexylresorcinol + silymarin + vitamins C/E showed 45% improvement in brightening and improvements in evenness and fine lines

2020Positive (efficacy)PMID:32985076View source ↗

Sources: 10 clinical journals and regulatory databases across the US, EU, Korea, Japan, and China. Every entry points to a specific document. See methodology for the full list and what each outcome label means.

Full ingredient list

Everything on the package label, not just the tracked actives above.

Sulfates freeParabens freeSilicones free
  • Contains fragrance: Farnesol, Geraniol, Linalool, LimoneneWorth knowing if you have sensitive or reactive skin.
  • Contains drying alcohol: Isopropyl AlcoholWorth knowing if you have sensitive or reactive skin.
+Show all 41 ingredients

Listed in the order printed on the package. By regulation, ingredients at 1% or higher are listed in descending order by concentration, so the first entry is the largest part of the formula.

  1. Salicylic Acid (1.5%)
  2. Silybum Marianum (Milk Thistle) Seed Oil
  3. Nigella Sativa (Black Cumin) Seed Oil
  4. Cucumis Sativus (Cucumber) Seed Oil
  5. Punica Granatum (Pomegranate) Seed Oil
  6. Diisopropyl Sebacate
  7. Vaccinium Macrocarpon (Cranberry) Seed Oil
  8. Dimethyl Isosorbide
  9. Linum Usitatissimum (Flax) Seed Oil
  10. Caprylic/​Capric Triglyceride
  11. Glycyrrhiza Glabra (Licorice) Root Extract
  12. Prunus Armeniaca (Apricot) Kernel Oil
  13. Hexylresorcinol
  14. Ethyl Linoleate
  15. Melia Azadirachta Leaf Extract
  16. Chamomilla Recutita (Matricaria) Flower Oil
  17. Citrus Aurantium Amara (Bitter Orange) Flower Oil
  18. Melia Azadirachta Flower Extract
  19. Helianthus Annuus (Sunflower) Seed Oil
  20. 4-Terpineol
  21. Amino Esters-1
  22. Simmondsia Chinensis (Jojoba) Seed Oil
  23. Coccinia Indica Fruit Extract
  24. Solanum Melongena (Eggplant) Fruit Extract
  25. Amber Powder
  26. Sebacic Acid
  27. Curcuma Longa (Turmeric) Root Extract
  28. Ocimum Sanctum Leaf Extract
  29. Isopropyl Alcohol
  30. Aloe Barbadensis Flower Extract
  31. Corallina Officinalis Extract
  32. Rosmarinus Officinalis (Rosemary) Leaf Extract
  33. Moringa Oleifera Seed Oil
  34. Tocopherol
  35. Farnesol
  36. Geraniol
  37. Water/​Eau/​Aqua
  38. Citrus Paradisi (Grapefruit) Peel Oil
  39. Ocimum Basilicum (Basil) Flower/​Leaf Extract
  40. Linalool
  41. Limonene

Layering conflicts

Ingredients in this product that can react with common actives. Avoid stacking unless noted.

  • Retinol + salicylic acid can over-exfoliate and damage the barrier. Alternate nights.

  • Tretinoin + salicylic acid — major irritation risk. Strict separation required.

  • AHA + BHA stacking risks over-exfoliation. Use a pre-formulated AHA/BHA product or alternate days.

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Not medical advice. GlowPal is educational. Patch-test new products and talk to a qualified healthcare professional before changing your routine, especially if you're pregnant, nursing, or have a diagnosed skin condition. See our terms.