Steareth-11

INCI: STEARETH-11

CAS Number
9005-00-9 (generic Steareth series)
Function
Surfactant – emulsifying; nonionic emulsifier
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted in cosmetics; CIR-reviewed 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

1,4-dioxane trace contamination possible from ethoxylation; controllable through purification

⚠️
Concern Level: Low

Frequently Asked Questions

Is Steareth-11 safe in cosmetics?

1,4-dioxane trace contamination possible from ethoxylation; controllable through purification The EU classifies Steareth-11 as "permitted". Safety rating: GOOD.

Is Steareth-11 allowed in the EU?

Steareth-11 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Steareth-11 do in cosmetics?

Steareth-11 functions as: Surfactant – emulsifying; nonionic emulsifier. It is classified as a cosmetic ingredient in our database. CAS number: 9005-00-9 (generic Steareth series).

What is the Margin of Safety for Steareth-11?

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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