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Cosmetic ingredient dictionary

Phenylbenzimidazole Sulfonic Acid in cosmetics: what it is and what it does

Phenylbenzimidazole Sulfonic Acid is a cosmetic ingredient that filters UV light to protect the skin. Open Beauty Facts finds it in 247 products, most often sunscreen.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does Phenylbenzimidazole Sulfonic Acid do in a product?

In a cosmetic product, Phenylbenzimidazole Sulfonic Acid filters UV light to protect the skin, protects the product from light and protects the product from UV light. The EU’s CosIng database lists these jobs for it: UV filter, light stabilizer and UV absorber.

UV filterlight stabilizerUV absorber

What is Phenylbenzimidazole Sulfonic Acid?

Phenylbenzimidazole Sulfonic Acid is the aromatic organic compound that conforms to the formula:.

CAS number
27503-81-7
EC number
248-502-0
CosIng reference
36535

Which products contain Phenylbenzimidazole Sulfonic Acid?

Open Beauty Facts finds Phenylbenzimidazole Sulfonic Acid in the ingredient lists of 247 of the 22,021 products it has a list for, most often sunscreen and facial creams.

  • Sunscreen94
  • Facial creams5

Products with it, by country of sale: Germany 61 · France 47 · Spain 25 · Sweden 17.

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

On these listsUV filters

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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