Methoxy PEG-23 Methacrylate

INCI: METHOXY PEG-23 METHACRYLATE (MONOMER); APPEARS IN COPOLYMERS SUCH AS ACRYLATES/METHOXY PEG-23 METHACRYLATE COPOLYMER

CAS Number
Not individually assigned; the copolymer Ethylhexyl Acrylate/Methoxy PEG-23 Methacrylate/Vinyl Acetate Copolymer carries CAS 137455-77-7
Function
Viscosity controlling, film forming (as part of copolymer systems)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - CIR Expert Panel concluded that acrylates copolymers containing this monomer are "safe in cosmetics in the present practices of use and concentration when formulated to be non-irritating"

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Residual monomer content must be controlled; standard PEG and acrylate concerns; the CIR safety qualification ("formulated to be non-irritating") indicates potential irritation at higher concentrations. The PEG-23 side chain (~1,012 g/mol) provides water solubility and flexibility to otherwise rigid acrylate/methacrylate backbone; enables water-dispersible film-forming polymers

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Concern Level: Moderate

Regulatory Flags

peg-ingredient

Frequently Asked Questions

Is Methoxy PEG-23 Methacrylate safe in cosmetics?

Residual monomer content must be controlled; standard PEG and acrylate concerns; the CIR safety qualification ("formulated to be non-irritating") indicates potential irritation at higher concentrations. The PEG-23 side chain (~1,012 g/mol) provides water solubility and flexibility to otherwise rigid acrylate/methacrylate backbone; enables water-dispersible film-forming polymers The EU classifies Methoxy PEG-23 Methacrylate as "permitted". Safety rating: MODERATE.

Is Methoxy PEG-23 Methacrylate allowed in the EU?

Methoxy PEG-23 Methacrylate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Methoxy PEG-23 Methacrylate do in cosmetics?

Methoxy PEG-23 Methacrylate functions as: Viscosity controlling, film forming (as part of copolymer systems). It is classified as a cosmetic ingredient in our database. CAS number: Not individually assigned; the copolymer Ethylhexyl Acrylate/Methoxy PEG-23 Methacrylate/Vinyl Acetate Copolymer carries CAS 137455-77-7.

What is the Margin of Safety for Methoxy PEG-23 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.

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