The ingredient, explained
Caprylhydroxamic Acid
A published expert safety assessment covers the exact ingredient in the specified exposure context.
Ingredient guide
What it is and what it does
Octanamide, N-Hydroxy-
About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗
- Chelating
- Binds metal ions that can affect product stability or appearance.
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
Panel judged assessed cosmetic uses safe but cautioned against uses that increase penetration after sensitization reports on damaged skin.
What this does not tell us
Use and concentration bounds apply; quantitative sensitization assessment is not universal tolerance. No skin benefit efficacy trial.
Sources for this summary. PubMed 40673532 ↗
Research review checked Oct 1, 2026
Bounded review of local candidates, exact-name indexed primary journal/PubMed safety and topical searches; not a systematic review.
Ingredient research is not proof that a product containing this ingredient works.
Read the 1 selected study
Safety assessment
Safety Assessment of Caprylhydroxamic Acid as Used in Cosmetics. ↗
International journal of toxicology · 2025
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
Octanamide, N-Hydroxy-
- INCI name on ingredient lists
- CAPRYLHYDROXAMIC ACID
- CAS registry number
- 7377-03-9
- EC number
- 230-936-7
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