Regulatory Status
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Safety Data
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Expert Verdict
Standard PEG-class: 1,4-dioxane contamination potential; penetration enhancement concern for damaged skin. ~40 EO units (~1,800 g/mol) puts this at the wax-like transition point; good water solubility; used as a non-greasy base component
Regulatory Flags
Frequently Asked Questions
Is Methoxy PEG-40 safe in cosmetics?
Standard PEG-class: 1,4-dioxane contamination potential; penetration enhancement concern for damaged skin. ~40 EO units (~1,800 g/mol) puts this at the wax-like transition point; good water solubility; used as a non-greasy base component The EU classifies Methoxy PEG-40 as "permitted". Safety rating: MODERATE.
Is Methoxy PEG-40 allowed in the EU?
Methoxy PEG-40 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Methoxy PEG-40 do in cosmetics?
Methoxy PEG-40 functions as: Solvent, humectant, viscosity controlling (consistent with mid-range mPEG functions). It is classified as a cosmetic ingredient in our database. CAS number: Falls under polyethylene glycol monomethyl ether series (general CAS 9004-74-4) - specific CAS not confirmed; verify independently.
What is the Margin of Safety for Methoxy PEG-40?
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.
Compliance Tools
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Related Ingredients
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