Is Methoxy PEG-25 safe in cosmetics?
Methoxy PEG-25 has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
MODERATE
Cosmetic Ingredient
Methoxy PEG-25
INCI: METHOXY PEG-25
Methoxy PEG-25 (CAS Not confirmed from available databases; likely falls under polyethylene glycol monomethyl ether series (general CAS 9004-74-4 covers mPEG of various MW) - verify before using in regulatory filings) is a cosmetic cosmetic ingredient functioning as Solvent, humectant (consistent with standard mPEG functions for liquid-range. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
CAS Number
Not confirmed from available databases; likely falls under polyethylene glycol monomethyl ether series (general CAS 9004-74-4 covers mPEG of various MW) - verify before using in regulatory filings
View industrial chemical safety profile →
Function
Solvent, humectant (consistent with standard mPEG functions for liquid-range PEGs)
Editorial assessment
MODERATE
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not prohibited; no specific CIR monograph dedicated to this exact ingredient identified
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-25.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Methoxy PEG-25 — not a computed safety verdict. See the sourced toxicological data above.
Regulatory Flags
peg-ingredient
Frequently Asked Questions
Is Methoxy PEG-25 allowed in the EU?
Methoxy PEG-25 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Methoxy PEG-25 do in cosmetics?
Methoxy PEG-25 functions as: Solvent, humectant (consistent with standard mPEG functions for liquid-range PEGs). It is classified as a cosmetic ingredient in our database. CAS number: Not confirmed from available databases; likely falls under polyethylene glycol monomethyl ether series (general CAS 9004-74-4 covers mPEG of various MW) - verify before using in regulatory filings.
Compliance Tools
Check Methoxy PEG-25 compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
Is Methoxy PEG-25 in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Methoxy PEG-25 in your formulation.