The ingredient, explained
Fumaric Acid
A published expert safety assessment covers this exact ingredient.
Ingredient guide
What it is and what it does
Fumaric acid
About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗
- Buffering
- Helps resist changes in a formula's pH.
Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗
Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.
A closer look
What the research shows
Safety assessment
Expert panel found data adequate to support described cosmetic-use safety for the named ingredients.
What this does not tell us
Dated group assessment/read-across. Primary final abstract retrieved from search index; live attachment renders a JavaScript shell. Does not authorize psoriasis-esters efficacy or all concentrations.
Sources for this summary. Published source ↗
Research review checked Oct 1, 2026
Bounded local abstract screening plus targeted primary indexed final-report identity and conclusion verification; not systematic.
Ingredient research is not proof that a product containing this ingredient works.
Read the 1 selected study
Follow the formula
Products containing this ingredient
From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.
Names and identifiers
Registry identity
Fumaric acid
- INCI name on ingredient lists
- FUMARIC ACID
- CAS registry number
- 110-17-8
- EC number
- 203-743-0
Sources for this ingredient record
- EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗ · ODbL 1.0 (Open Beauty Facts database) · Recorded Aug 8, 2026