Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Same profile as other PEG methacrylates - residual monomer control, minimal dermal penetration as polymer; 1,4-dioxane trace concern. Slightly more hydrophilic than PEG-8 variant due to one additional EO unit; used both as a standalone conditioning agent and as a monomer building block in copolymers
Regulatory Flags
Frequently Asked Questions
Is Methoxy PEG-9 Methacrylate safe in cosmetics?
Same profile as other PEG methacrylates - residual monomer control, minimal dermal penetration as polymer; 1,4-dioxane trace concern. Slightly more hydrophilic than PEG-8 variant due to one additional EO unit; used both as a standalone conditioning agent and as a monomer building block in copolymers The EU classifies Methoxy PEG-9 Methacrylate as "permitted". Safety rating: MODERATE.
Is Methoxy PEG-9 Methacrylate allowed in the EU?
Methoxy PEG-9 Methacrylate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Methoxy PEG-9 Methacrylate do in cosmetics?
Methoxy PEG-9 Methacrylate functions as: Humectant, film forming, skin conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 26915-72-0 (shared generic CAS for the methoxy PEG methacrylate series).
What is the Margin of Safety for Methoxy PEG-9 Methacrylate?
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
Check Methoxy PEG-9 Methacrylate compliance across multiple jurisdictions:
Related Ingredients
Is Methoxy PEG-9 Methacrylate 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-9 Methacrylate in your formulation.