Food use
Nothing to weigh for this context yet.
We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.
- beauty
Ammonium sulfite
CAS 10196-04-0
Concern score
Not assessed — no hazard data yet.
Ammonium sulfite in plain language
Also known as Ammonium sulphite
Used in cosmetics as a preservative, a hair waving or straightening agent and a reducing agent. Ammonium Sulfite is an inorganic salt.
- Preservative
- Hair waving or straightening
- Reducing
- We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
What we know about this ingredient
Canonical ingredient record built from 1 public-source records.
Regulation
No restrictions found. Ammonium sulfite appears in these published regulatory listings.
EUCosIngActiveAmmonium Sulfite is an inorganic salt that conforms to the formula: Restriction: III/99 V/9
- Ammonium Sulfite is an inorganic salt that conforms to the formula: Restriction: III/99 V/9Source →
Expert safety opinions
No expert opinion on file for Ammonium sulfite. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.
SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.
Evidence & sources
No graded research studies for Ammonium sulfite yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
- Open →
CosIng
regulatory · updated 2026-09-23
Allergen profile
Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.
- SulphitesContains · Oral (ingested)
Source: chemindex_name_match
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
No signal in this context
Fragrance avoidance
Nothing to weigh for this context yet.
We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.