The ingredient, explained
Ammonium Chloride
Ammonium chloride
Ingredient guide
What it is and what it does
About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗
- Buffering
- Helps resist changes in a formula's pH.
- Masking
- Reduces or conceals the formula's underlying odour or taste.
- Viscosity controlling
- Adjusts how thick or fluid a product is.
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
Local human patch test applies cocotrimethyl ammonium chloride, a distinct quaternary compound, not ammonium chloride. Ammonia/carbonate assessments use ammonium chloride only as read-across support for different assessed ingredients; their conclusions cannot be transferred back.
Research review checked Oct 1, 2026
Bounded local and exact-name indexed primary source search; absence is not proof of no research.
Ingredient research is not proof that a product containing this ingredient works.
Follow the formula
Products containing this ingredient
From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.
Names and identifiers
- INCI name on ingredient lists
- AMMONIUM CHLORIDE
- CAS registry number
- 12125-02-9
- EC number
- 235-186-4
Other recorded names (1)
- ammonii chloridum
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