Is Aluminum Chlorohydrate safe in cosmetics?
Aluminum Chlorohydrate has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Active Ingredient
Aluminum Chlorohydrate
Also known as: Aluminium chloride hydroxide (Al2Cl(OH)5), Basic aluminum chloride [Al2(OH)5Cl], Aluminum chlorhydrol, Basic aluminum chlorate, EINECS 234-933-1 (+7 more)
INCI: ALUMINUM CHLOROHYDRATE
Aluminum Chlorohydrate (CAS 12042-91-0) is a cosmetic active ingredient functioning as antiperspirant, astringent, deodorant. EU Regulation 1223/2009 status: permitted, max deo roll-on/gel 6.18%, deo spray antiperspirant 3.24%, aftershave 2.15%, EDP/EDT 0.05%, shampoo 7.14%, toothpaste 3.18% (as % Al in finished product per SCCS/1662/23). 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 12042-91-0 →
Auto-generated CPSR Part A draft with source citations
Function
antiperspirant, astringent, deodorant
Safety Rating
GOOD
Regulatory Status
EU EU Status
permitted
EU Max Conc.
deo roll-on/gel 6.18%, deo spray antiperspirant 3.24%, aftershave 2.15%, EDP/EDT 0.05%, shampoo 7.14%, toothpaste 3.18% (as % Al in finished product per SCCS/1662/23)
US US Status
permitted
US Notes
GRAS under OTC Monograph M019 (21 CFR Part 350); maximum 25% in antiperspirant products; regulated as OTC drug not cosmetic when used for antiperspirant claims; labeling must include kidney disease warning
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 Chlorohydrate.
Calculate MoS for your specific formulation with the MoS Calculator.
Endocrine Disruptor Evidence (Expanded)
Cross-referenced EDC classifications, mechanism data, and dose-response evidence from EDLists, SIN List, and cosmetic-specific detail sources.
Cosmetic-Specific Mechanism
Category: heavy metal
Receptor targets: ERα
LOEC: 100 µM
EU status: allowed (max 25% anhydrous)
metalloestrogen; agonist (ERα)
Dose-Response Data Points
| Endpoint | Target | Value | Direction |
|---|---|---|---|
| dermal_intact | skin | 1.81 µg/cm² | - |
| dermal_stripped | skin | 11.5 µg/cm² | - |
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
SVHC Candidate
No
Expanded Jurisdictional Detail
Additional regulatory detail beyond the 7-jurisdiction summary: Saudi SFDA, Korea MFDS, ASEAN ACD, Japan/Korea, Brazil/India, and cross-jurisdictional restriction entries.
JPKR Japan/Korea Cosmetics
Korea (Restricted): max 25.0
Additional Jurisdictional Restrictions (3)
| Jurisdiction | Status | Max % | Product Type |
|---|---|---|---|
| CN | restricted | 20 | Antiperspirant/deodorant products |
| AU | restricted | - | deodorants |
| GCC | restricted | 20.0 | Antiperspirant products |
Typical Use Concentrations
Reported concentration ranges per product category from SCCS/CIR/industry sources.
| Product Category | Typical Range | Max Reported | Source |
|---|---|---|---|
| Antiperspirant | 5–25 | 25 | CIR/VCRP |
Additional Ingredient Properties
4 property records from structured ingredient metadata.
deodorant
{"cas_number": "1327-41-9", "ingredient_class": "antiperspirant_active", "mechanism_of_action": "sweat_gland_blocking", "antiperspirant_efficacy_sweat_reduction_pct": "20-50", "deodorant_efficacy_hours": "24", "odor_reduction_pct": "70-90", "bacteriostatic": "yes", "bactericidal": "no", "target_bacteria": "broad_spectrum", "microbiome_impact": "broad", "axillary_microbiome_effect": "reduces bacter…
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"…
mineral_clay
{"cas_number": "12042-91-0", "ingredient_class": "other", "chemical_formula": "Al2Cl(OH)5", "mineral_origin": "synthetic", "particle_size_range_um": "1-50", "surface_area_m2_per_g": "5-30", "crystal_structure": "amorphous", "color_appearance": "white", "opacity": "opaque", "refractive_index": "1.62", "oil_absorption_g_per_100g": "60-150", "water_absorption_capacity": "low", "surface_charge_at_pH_7…
pediatric_safety
{"safe_for_newborn_0_6m": "avoid", "safe_for_infant_6_12m": "caution", "safe_for_toddler_1_3y": "caution", "safe_for_child_3_12y": "yes", "safe_for_teen_12_18y": "yes", "pediatric_max_concentration_pct": "0.0", "adult_max_concentration_pct": "25.0", "pediatric_dermal_absorption_factor": "moderate", "immature_skin_barrier_risk": "moderate", "oral_ingestion_risk": "low", "eye_irritation_risk": "low"…
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Antiperspirant
Astringent
Deodorizer
Regulatory List Membership (1)
EU Restricted for Children (Cosmetics)
Expert Verdict
Expert safety assessment and concern-level summary for Aluminum Chlorohydrate.
Regulatory Flags
eu-not-annex-listed-but-sccs-limits-apply
otc-drug-us
not-cosmos-certifiable
eu_children_restricted
Known Synonyms
Aluminium chloride hydroxide (Al2Cl(OH)5)
Basic aluminum chloride [Al2(OH)5Cl]
Aluminum chlorhydrol
Basic aluminum chlorate
EINECS 234-933-1
Locron Extra
Locron flakes
Macrospherical 95
Wickenol 321
Wickenol 323
Wickenol 324
UNII-407PSC3OC7
Chemical Function
Antiperspirant
Astringent
Deodorizer
Regulatory Lists
children; Europe; Personal care
Canada; pharmaceutical
inert_ingredient; non_food_use; Pesticides
active_ingredient; Europe; Pesticides
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Aluminum Chlorohydrate allowed in the EU?
Aluminum Chlorohydrate EU regulatory status: permitted. Maximum allowed concentration: deo roll-on/gel 6.18%, deo spray antiperspirant 3.24%, aftershave 2.15%, EDP/EDT 0.05%, shampoo 7.14%, toothpaste 3.18% (as % Al in finished product per SCCS/1662/23). This is based on EU Regulation 1223/2009 and its amendments.
What does Aluminum Chlorohydrate do in cosmetics?
Aluminum Chlorohydrate functions as: antiperspirant, astringent, deodorant. It is classified as a Active Ingredient in our database. CAS number: 12042-91-0.
Is Aluminum Chlorohydrate used outside cosmetics?
Aluminum Chlorohydrate 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
Check Aluminum Chlorohydrate compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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