Is Ammonium Iodide safe in cosmetics?
Ammonium Iodide has a safety rating of "MODERATE" in our database. EU status: prohibited. US status: permitted.
Moderate
Cosmetic Ingredient
Ammonium Iodide
Also known as: Ammonium iodide ((NH4)I), Ammonium jodatum
INCI: AMMONIUM IODIDE
Ammonium Iodide (CAS 12027-06-4) is a cosmetic cosmetic ingredient functioning as No standard INCI cosmetic function assigned; historically pharmaceutical/topical. EU Regulation 1223/2009 status: prohibited. 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 12027-06-4 →
Auto-generated CPSR Part A draft with source citations
Cross-Vertical Regulatory Divergence
Ammonium Iodide is prohibited in EU cosmetics but has active industrial GHS classifications (H315, H319, H335).
Source: Cosmetics: ingredients.eu_status; Chemicals: ghs_classifications.signal_word/hazard_statement_code
Function
No standard INCI cosmetic function assigned; historically pharmaceutical/topical
Safety Rating
MODERATE
Regulatory Status
EU EU Status
prohibited
US US Status
permitted
US Notes
Permitted — No specific FDA cosmetic restriction; very limited cosmetic use
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 Iodide.
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
Intermediate
Tonnage Band
Intermediate use only
Substance Type
SUBSTANCE
SVHC Candidate
No
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Biocide
Expert Verdict
Expert safety assessment and concern-level summary for Ammonium Iodide.
NOAEL Studies Summary
View details ->Public NOAEL study rows linked to Ammonium Iodide by CAS number or substance name.
Studies
12
Lowest NOAEL
0.01 mg/kg bw/day
Highest NOAEL
684 mg/kg bw/day
ECHA_REACH_reach_study_results_dossiers_23-05-2023.zip
Known Synonyms
Ammonium iodide ((NH4)I)
Ammonium jodatum
Chemical Function
Biocide
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Ammonium Iodide allowed in the EU?
Ammonium Iodide EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.
What does Ammonium Iodide do in cosmetics?
Ammonium Iodide functions as: No standard INCI cosmetic function assigned; historically pharmaceutical/topical. It is classified as a cosmetic ingredient in our database. CAS number: 12027-06-4.
Is Ammonium Iodide used outside cosmetics?
Ammonium Iodide 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 Iodide have different safety status in cosmetics vs industrial chemicals?
Ammonium Iodide is prohibited in EU cosmetics but has active industrial GHS classifications (H315, H319, H335).
Compliance Tools
Check Ammonium Iodide 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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