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Cosmetic ingredient dictionary

Fumaric Acid in cosmetics: what it is and what it does

Fumaric Acid is a cosmetic ingredient that keeps the product's acidity steady. Open Beauty Facts finds it in 91 products, most often shampoos.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does Fumaric Acid do in a product?

In a cosmetic product, Fumaric Acid keeps the product's acidity steady. The EU’s CosIng database lists this job for it: buffering.

buffering

What other names and numbers does Fumaric Acid have?

CAS number
110-17-8
EC number
203-743-0
CosIng reference
33964

Which products contain Fumaric Acid?

Open Beauty Facts finds Fumaric Acid in the ingredient lists of 91 of the 22,021 products it has a list for, most often shampoos, hair care and shampoos for colored hair.

  • Shampoos24
  • Hair care9
  • Shampoos for colored hair5
  • 2-in-1 shampoos4

Products with it, by country of sale: France 19 · Norway 17 · Germany 10 · United States 8.

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

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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