Is Methoxy PEG-40 safe in cosmetics?
Methoxy PEG-40 has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Methoxy PEG-40
INCI: METHOXY PEG-40
Methoxy PEG-40 (CAS Falls under polyethylene glycol monomethyl ether series (general CAS 9004-74-4) - specific CAS not confirmed; verify independently) is a cosmetic cosmetic ingredient functioning as Solvent, humectant, viscosity controlling (consistent with mid-range mPEG. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
Auto-generated CPSR Part A draft with source citations
CAS Number
Falls under polyethylene glycol monomethyl ether series (general CAS 9004-74-4) - specific CAS not confirmed; verify independently
View industrial chemical safety profile →
Function
Solvent, humectant, viscosity controlling (consistent with mid-range mPEG functions)
Safety Rating
MODERATE
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not prohibited; general PEG safety applies
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Methoxy PEG-40.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Methoxy PEG-40.
Regulatory Flags
peg-ingredient
Frequently Asked Questions
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.
Compliance Tools
Check Methoxy PEG-40 compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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