Is Aluminum Sesquichlorohydrate safe in cosmetics?
Aluminum Sesquichlorohydrate has a safety rating of "GOOD" in our database. EU status: restricted. US status: permitted.
Good
Cosmetic Ingredient
Aluminum Sesquichlorohydrate
INCI: ALUMINUM SESQUICHLOROHYDRATE
Aluminum Sesquichlorohydrate (CAS 11089-92-2) is a cosmetic cosmetic ingredient functioning as Antiperspirant, Astringent, Deodorant. EU Regulation 1223/2009 status: restricted, max Spray antiperspirant/deodorant: ≤10.60% (as Al); non-spray antiperspirant/deodorant: ≤6.25% (as Al); lipsticks: ≤0.77% (as Al); toothpaste: ≤2.65% (as Al). 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 11089-92-2 →
Auto-generated CPSR Part A draft with source citations
Function
Antiperspirant, Astringent, Deodorant
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
tetraaluminum;trichloride;nonahydroxide
InChIKey
UZHIXXILBCHCKV-UHFFFAOYSA-B
Regulatory Status
EU EU Status
restricted
EU Max Conc.
Spray antiperspirant/deodorant: ≤10.60% (as Al); non-spray antiperspirant/deodorant: ≤6.25% (as Al); lipsticks: ≤0.77% (as Al); toothpaste: ≤2.65% (as Al)
US US Status
permitted
US Notes
Regulated as an OTC antiperspirant active ingredient under FDA Monograph M019 (21 CFR 350); permitted up to 25% in antiperspirant formulations; CIR deferred full safety assessment to FDA given OTC drug classification; not prohibited or restricted for cosmetic-only 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 Aluminum Sesquichlorohydrate.
Calculate MoS for your specific formulation with the MoS Calculator.
Additional Ingredient Properties
2 property records from structured ingredient metadata.
deodorant
{"cas_number": "11089-92-2", "ingredient_class": "antiperspirant_active", "mechanism_of_action": "sweat_gland_blocking", "antiperspirant_efficacy_sweat_reduction_pct": "25-55", "deodorant_efficacy_hours": "24-36", "odor_reduction_pct": "65-85", "bacteriostatic": "yes", "bactericidal": "no", "target_bacteria": "broad_spectrum", "microbiome_impact": "broad", "axillary_microbiome_effect": "bacterial …
ecotoxicity
{"biodegradable": "no", "biodegradation_days": "non-biodegradable", "bioaccumulative": "yes", "aquatic_toxicity_level": "moderate", "coral_reef_safe": "unknown", "marine_toxicity": "moderate toxicity", "freshwater_toxicity": "aluminum accumulation", "soil_toxicity": "metal accumulation", "endocrine_disruptor": "no", "persistent_organic_pollutant": "yes", "microplastic": "no", "nano_particle": "no"…
Expert Verdict
Expert safety assessment and concern-level summary for Aluminum Sesquichlorohydrate.
Regulatory Flags
fda-otc-drug-antiperspirant
CIR-deferred-to-FDA
SCCS-assessed
EU-annex-III-pending
extremely-low-dermal-absorption
non-sensitizing
concentration-limits-by-product-type
no-cancer-link-established
gentler-than-aluminum-chloride
omnibus-act-2-pending
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Aluminum Sesquichlorohydrate allowed in the EU?
Aluminum Sesquichlorohydrate EU regulatory status: restricted. Maximum allowed concentration: Spray antiperspirant/deodorant: ≤10.60% (as Al); non-spray antiperspirant/deodorant: ≤6.25% (as Al); lipsticks: ≤0.77% (as Al); toothpaste: ≤2.65% (as Al). This is based on EU Regulation 1223/2009 and its amendments.
What does Aluminum Sesquichlorohydrate do in cosmetics?
Aluminum Sesquichlorohydrate functions as: Antiperspirant, Astringent, Deodorant. It is classified as a cosmetic ingredient in our database. CAS number: 11089-92-2.
Is Aluminum Sesquichlorohydrate used outside cosmetics?
Aluminum Sesquichlorohydrate also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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Aluminum Chlorohydrex
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Chemical family
Antiperspirant, Astringent, Deodorant
AMBERGRIS TINCTURE
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AMINO ESTERS-1
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