Polyurethane-24/Methyl Methacrylate Crosspolymer

INCI: POLYURETHANE-24/METHYL METHACRYLATE CROSSPOLYMER

CAS Number
Not assigned (not in CIR 66-ingredient list)
Function
Hair Fixing — strong-hold film-forming resin for sprays, gels, mousses
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Not individually CIR-reviewed as part of the 2017 polyurethane report (separate crosspolymer INCI)

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Not included in CIR 2017 polyurethane assessment; safety data is primarily supplier-sourced. Used in aerosol sprays with inhalation route exposure. Contains methyl methacrylate monomer component; residual MMA is a known skin sensitizer and must be verified for residual levels.

⚠️
Concern Level: Moderate

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is Polyurethane-24/Methyl Methacrylate Crosspolymer safe in cosmetics?

Not included in CIR 2017 polyurethane assessment; safety data is primarily supplier-sourced. Used in aerosol sprays with inhalation route exposure. Contains methyl methacrylate monomer component; residual MMA is a known skin sensitizer and must be verified for residual levels. The EU classifies Polyurethane-24/Methyl Methacrylate Crosspolymer as "permitted". Safety rating: GOOD.

Is Polyurethane-24/Methyl Methacrylate Crosspolymer allowed in the EU?

Polyurethane-24/Methyl Methacrylate Crosspolymer EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Polyurethane-24/Methyl Methacrylate Crosspolymer do in cosmetics?

Polyurethane-24/Methyl Methacrylate Crosspolymer functions as: Hair Fixing — strong-hold film-forming resin for sprays, gels, mousses. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned (not in CIR 66-ingredient list).

What is the Margin of Safety for Polyurethane-24/Methyl Methacrylate Crosspolymer?

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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