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Cosmetic ingredient dictionary

Hydroxyacetophenone in cosmetics: what it is and what it does

Hydroxyacetophenone is a cosmetic ingredient that stops the product reacting with oxygen and going off. Open Beauty Facts finds it in 452 products, most often sunscreen.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does Hydroxyacetophenone do in a product?

In a cosmetic product, Hydroxyacetophenone stops the product reacting with oxygen and going off. The EU’s CosIng database lists this job for it: antioxidant.

antioxidant

What other names and numbers does Hydroxyacetophenone have?

CAS number
99-93-4
EC number
202-802-8
CosIng reference
90948

Which products contain Hydroxyacetophenone?

Open Beauty Facts finds Hydroxyacetophenone in the ingredient lists of 452 of the 22,021 products it has a list for, most often sunscreen, face care and face masks.

  • Sunscreen61
  • Face care23
  • Face masks17

Products with it, by country of sale: Germany 100 · France 75 · United States 68 · Spain 26.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Hydroxyacetophenone turns up, not how much of the market it is.

On these listsAntioxidants

Bravoora reads this ingredient for everyone you shop for: an allergy or intolerance, a vegan or vegetarian diet, a calorie or protein goal, and the labels on supplements and skincare too. Build a profile · For dermatologists, dietitians and doctors

Sources

The job, the description and the EU annex entry are CosIng’s; the fragrance allergens are the EU Annex III names Bravoora’s label checker reads; the product counts are Open Beauty Facts’.

  1. European Commission: CosIng cosmetic ingredient database (functions, description, EU annex entry)
  2. Open Beauty Facts: product database, 77,506 products, read 13 October 2026, ODbL

Contains information from Open Beauty Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this dictionary’s data · How we check

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