Is Ammonium Sulfite safe in cosmetics?
Ammonium Sulfite has a safety rating of "MODERATE" in our database. EU status: restricted. US status: permitted.
Moderate
Cosmetic Ingredient
Ammonium Sulfite
Also known as: EINECS 233-484-9, UNII-8LF589Y5GD
INCI: AMMONIUM SULFITE
Ammonium Sulfite (CAS 10196-04-0) is a cosmetic cosmetic ingredient functioning as Hair waving/straightening (reducing agent), antioxidant. EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 10196-04-0 →
Auto-generated CPSR Part A draft with source citations
Cross-Vertical Regulatory Divergence
Ammonium Sulfite is classified GHS Danger (H314, H315, H319, H335) in the chemicals database but is restricted in EU cosmetics.
Source: Cosmetics: ingredients.eu_status; Chemicals: ghs_classifications.signal_word/hazard_statement_code
Function
Hair waving/straightening (reducing agent), antioxidant
Safety Rating
MODERATE
Regulatory Status
EU EU Status
restricted
US US Status
permitted
US Notes
Permitted in cosmetics; no specific FDA restriction
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Ammonium Sulfite.
Calculate MoS for your specific formulation with the MoS Calculator.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
10 - 100 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Dye
Hair waving or straightening
Preservative
Reducing agent
Regulatory List Membership (1)
FDA Substances Added to Food (EAFUS)
Expert Verdict
Expert safety assessment and concern-level summary for Ammonium Sulfite.
Regulatory Flags
fda_food_additive
Known Synonyms
EINECS 233-484-9
UNII-8LF589Y5GD
Chemical Function
Preservative
Reducing agent
Hair waving or straightening
Dye
Regulatory Lists
food_additive; Substances Added to Food (formerly EAFUS) (2/2019)
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Ammonium Sulfite allowed in the EU?
Ammonium Sulfite EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does Ammonium Sulfite do in cosmetics?
Ammonium Sulfite functions as: Hair waving/straightening (reducing agent), antioxidant. It is classified as a cosmetic ingredient in our database. CAS number: 10196-04-0.
Is Ammonium Sulfite used outside cosmetics?
Ammonium Sulfite also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Does Ammonium Sulfite have different safety status in cosmetics vs industrial chemicals?
Ammonium Sulfite is classified GHS Danger (H314, H315, H319, H335) in the chemicals database but is restricted in EU cosmetics.
Compliance Tools
Check Ammonium Sulfite compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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