Is Quaternium-18 Bentonite safe in cosmetics?
Quaternium-18 Bentonite has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Quaternium-18 Bentonite
INCI: QUATERNIUM-18 BENTONITE
Quaternium-18 Bentonite (CAS 1340-69-8 / 68953-58-2 [^1_2]) is a cosmetic cosmetic ingredient functioning as Dispersing agent (non-surfactant), Suspending agent, Viscosity controlling. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 1340-69-8 / 68953-58-2 [^1_2] →
Auto-generated CPSR Part A draft with source citations
Function
Dispersing agent (non-surfactant), Suspending agent, Viscosity controlling [^1_10][^1_2]
Safety Rating
GOOD
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted; CIR reviewed — safe as used (1982, reaffirmed 2020 after re-opening for inhalation data review) [^1_12][^1_2]
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Quaternium-18 Bentonite.
Calculate MoS for your specific formulation with the MoS Calculator.
Additional Ingredient Properties
1 property record from structured ingredient metadata.
rheology
{"cas_number": "68953-58-2", "rheology_modifier_type": "Inorganic - Modified Clay", "thickening_mechanism": "Particle swelling and network formation", "viscosity_increase_factor": "1500-6000x", "brookfield_viscosity_typical_cps": "3800-20000", "shear_thinning_behavior": "Moderate", "thixotropic": "Low", "yield_stress_pa": "4-12", "flow_curve_type": "Pseudoplastic", "optimal_ph_range": "4.0-8.0", "…
Expert Verdict
Expert safety assessment and concern-level summary for Quaternium-18 Bentonite.
Frequently Asked Questions
Is Quaternium-18 Bentonite allowed in the EU?
Quaternium-18 Bentonite EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Quaternium-18 Bentonite do in cosmetics?
Quaternium-18 Bentonite functions as: Dispersing agent (non-surfactant), Suspending agent, Viscosity controlling [^1_10][^1_2]. It is classified as a cosmetic ingredient in our database. CAS number: 1340-69-8 / 68953-58-2 [^1_2].
Compliance Tools
Check Quaternium-18 Bentonite compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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