Is Silicone Quaternium-8 safe in cosmetics?
Silicone Quaternium-8 has a safety rating of "GOOD" in our database. EU status: permitted. US status: restricted.
Good
Cosmetic Ingredient
Silicone Quaternium-8
INCI: SILICONE QUATERNIUM-8
Silicone Quaternium-8 (CAS 721430-34-8) is a cosmetic cosmetic ingredient functioning as Hair conditioning; skin conditioning; enhances spreadability. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 721430-34-8 →
Auto-generated CPSR Part A draft with source citations
Function
Hair conditioning; skin conditioning; enhances spreadability
Safety Rating
GOOD
Regulatory Status
EU EU Status
permitted
US US Status
restricted
US Notes
Not specifically restricted; listed in China CFDA permitted list
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Silicone Quaternium-8.
Calculate MoS for your specific formulation with the MoS Calculator.
Additional Ingredient Properties
1 property record from structured ingredient metadata.
silicone
{"cas_number": "68439-57-6", "silicone_class": "amodimethicone", "molecular_weight_Da": "7600.0", "viscosity_cSt": "2700", "volatility": "non_volatile", "evaporation_rate_relative_to_D5": "0.0062", "refractive_index": "1.4056", "specific_gravity": "0.979", "flash_point_C": "122.0", "surface_tension_mN_m": "21.98", "spreading_coefficient": "3.79", "film_forming_ability": "excellent", "skin_feel": "…
Expert Verdict
Expert safety assessment and concern-level summary for Silicone Quaternium-8.
Frequently Asked Questions
Is Silicone Quaternium-8 allowed in the EU?
Silicone Quaternium-8 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Silicone Quaternium-8 do in cosmetics?
Silicone Quaternium-8 functions as: Hair conditioning; skin conditioning; enhances spreadability. It is classified as a cosmetic ingredient in our database. CAS number: 721430-34-8.
Compliance Tools
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Ingredient Decoder
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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