Silicone Quaternium-4

INCI: SILICONE QUATERNIUM-4

CAS Number
Not listed in CosIng with a CAS
Function
Antistatic agent; hair conditioning
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status restricted
US Notes Not specifically restricted

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

No CIR or SCCS assessment. Same class concerns as other cationic silicones โ€” potential mild irritation at elevated concentrations

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Concern Level: Moderate

Frequently Asked Questions

Is Silicone Quaternium-4 safe in cosmetics?

No CIR or SCCS assessment. Same class concerns as other cationic silicones โ€” potential mild irritation at elevated concentrations The EU classifies Silicone Quaternium-4 as "permitted". Safety rating: MODERATE.

Is Silicone Quaternium-4 allowed in the EU?

Silicone Quaternium-4 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Silicone Quaternium-4 do in cosmetics?

Silicone Quaternium-4 functions as: Antistatic agent; hair conditioning. It is classified as a cosmetic ingredient in our database. CAS number: Not listed in CosIng with a CAS.

What is the Margin of Safety for Silicone Quaternium-4?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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