Steareth-6

INCI: STEARETH-6

CAS Number
9005-00-9 (generic) — specific CAS for Steareth-6: referenced in CIR as 3,6,9,12,15,18-hexaoxahexatriacontan-1-ol
Function
Surfactant – emulsifying agent (mid-range HLB emulsifier)
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Specifically CIR-reviewed (named in original assessment and 2006 reaffirmation) — safe in present practices of use and concentration

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

1,4-Dioxane residual; at 25% concentration can cause irritation — must be formulated appropriately

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Concern Level: Moderate

Frequently Asked Questions

Is Steareth-6 safe in cosmetics?

1,4-Dioxane residual; at 25% concentration can cause irritation — must be formulated appropriately The EU classifies Steareth-6 as "permitted". Safety rating: GOOD.

Is Steareth-6 allowed in the EU?

Steareth-6 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Steareth-6 do in cosmetics?

Steareth-6 functions as: Surfactant – emulsifying agent (mid-range HLB emulsifier). It is classified as a cosmetic ingredient in our database. CAS number: 9005-00-9 (generic) — specific CAS for Steareth-6: referenced in CIR as 3,6,9,12,15,18-hexaoxahexatriacontan-1-ol.

What is the Margin of Safety for Steareth-6?

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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