Laneth-40

INCI: LANETH-40

CAS Number
61791-20-6 (generic PEG lanolin alcohol ethers)
Function
Surfactant – emulsifying agent; cleansing agent
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — CIR Expert Panel concluded alkyl PEG ethers of lanolin alcohol (including laneths) safe when formulated to be non-irritating (2012)

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Trace 1,4-dioxane from ethoxylation process; pesticide residues possible in lanolin-sourced feedstock; formulate to be non-irritating per CIR requirement

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Concern Level: Low

Frequently Asked Questions

Is Laneth-40 safe in cosmetics?

Trace 1,4-dioxane from ethoxylation process; pesticide residues possible in lanolin-sourced feedstock; formulate to be non-irritating per CIR requirement The EU classifies Laneth-40 as "permitted". Safety rating: GOOD.

Is Laneth-40 allowed in the EU?

Laneth-40 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Laneth-40 do in cosmetics?

Laneth-40 functions as: Surfactant – emulsifying agent; cleansing agent. It is classified as a cosmetic ingredient in our database. CAS number: 61791-20-6 (generic PEG lanolin alcohol ethers).

What is the Margin of Safety for Laneth-40?

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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