Stearoyl Ethyltrimonium Methosulfate

INCI: STEAROYL ETHYLTRIMONIUM METHOSULFATE

CAS Number
Not assigned (CIR notes "None" for CAS)
Function
Surfactant — emulsifying agent
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes CIR-reviewed under trimoniums assessment — safe as used

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Trade name: Surfactive V 18. Standard quat precautions apply

⚠️
Concern Level: Low

Frequently Asked Questions

Is Stearoyl Ethyltrimonium Methosulfate safe in cosmetics?

Trade name: Surfactive V 18. Standard quat precautions apply The EU classifies Stearoyl Ethyltrimonium Methosulfate as "permitted". Safety rating: GOOD.

Is Stearoyl Ethyltrimonium Methosulfate allowed in the EU?

Stearoyl Ethyltrimonium Methosulfate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Stearoyl Ethyltrimonium Methosulfate do in cosmetics?

Stearoyl Ethyltrimonium Methosulfate functions as: Surfactant — emulsifying agent. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned (CIR notes "None" for CAS).

What is the Margin of Safety for Stearoyl Ethyltrimonium Methosulfate?

adequate 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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