Is Ammonium Alum safe in cosmetics?
Ammonium Alum has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Ammonium Alum
Also known as: Sulfuric acid, aluminum ammonium salt (2:1:1), Aluminum ammonium sulfate (Al(NH4)(SO4)2), Aluminum ammonium disulfate (Al(NH4)(SO4)2), Aluminum ammonium sulfate, Ammonium aluminum sulfate (NH4Al(SO4)2) (+14 more)
Ammonium Alum (CAS 7784-25-0) is a cosmetic cosmetic ingredient functioning as Antiperspirant; Astringent. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and food safety data.
View industrial chemical safety profile for CAS 7784-25-0 →
Auto-generated CPSR Part A draft with source citations
Function
Antiperspirant; Astringent
Safety Rating
MODERATE
Regulatory Status
EU EU Status
permitted
US US Status
permitted
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 Alum.
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
10,000 - 100,000 tonnes
Substance Type
SUBSTANCE; GROUP
SVHC Candidate
No
Additional Ingredient Properties
1 property record from structured ingredient metadata.
deodorant
{"cas_number": "7784-25-0", "ingredient_class": "antiperspirant_active", "mechanism_of_action": "sweat_gland_blocking", "antiperspirant_efficacy_sweat_reduction_pct": "10-30", "deodorant_efficacy_hours": "12-24", "odor_reduction_pct": "50-75", "bacteriostatic": "yes", "bactericidal": "yes", "target_bacteria": "broad_spectrum", "microbiome_impact": "selective", "axillary_microbiome_effect": "modera…
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Antiperspirant
Astringent
Expert Verdict
Expert safety assessment and concern-level summary for Ammonium Alum.
Known Synonyms
Sulfuric acid, aluminum ammonium salt (2:1:1)
Aluminum ammonium sulfate (Al(NH4)(SO4)2)
Aluminum ammonium disulfate (Al(NH4)(SO4)2)
Aluminum ammonium sulfate
Ammonium aluminum sulfate (NH4Al(SO4)2)
Alum ammonium
Aluminum ammonium alum
Aluminum ammonium disulfate
Ammonium aluminum alum
Burnt ammonium alum
Caswell No. 041B
EINECS 232-055-3
EPA Pesticide Chemical Code 098501
Exsiccated ammonium alum
Monoammonium monoaluminum sulfate
NSC 146176
Aluminum sulfate compd. with ammonium sulfate (1:1)
Aluminum ammonium bis(sulfate)
UNII-DPU64XYB1D
Chemical Function
Astringent
Antiperspirant
Regulatory Lists
active_ingredient; Europe; Pesticides
active_ingredient; Europe; Pesticides
inert_ingredient; Pesticides
inert_ingredient; non_food_use; Pesticides
Australian Status
AICIS status: listed
Cross-Vertical Safety Context
Same-CAS public records found in food safety data.
SOURCE
EFSA / FDA GRAS
food_additives
Food Safety Data
Same-CAS food additive or FDA GRAS records from the core public database.
Food Name
Aluminium ammonium sulfate
E Number
E523
ADI
1 mg/kg bw
Food Category
flavor_enhancer
Frequently Asked Questions
Is Ammonium Alum allowed in the EU?
Ammonium Alum EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Ammonium Alum do in cosmetics?
Ammonium Alum functions as: Antiperspirant; Astringent. It is classified as a cosmetic ingredient in our database. CAS number: 7784-25-0.
Is Ammonium Alum used outside cosmetics?
Ammonium Alum also appears in industrial chemical safety and food safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Ammonium Alum 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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