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Film Former

T-BUTYL METHACRYLATE

CAS 585-07-9
45

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A bulky-alkyl methacrylate monomer used to harden nail-coating films. Like other alkyl methacrylates, residual monomer can sensitise skin, so its leave-on use in cosmetics is restricted.

Function

FILM FORMING

Skin benefits

  • Forms hard, glossy polymer films in nail products
  • Improves wear and chip resistance

Known concerns

  • Methacrylate monomer — known skin sensitizer
  • ACD risk from residuals
  • Restricted as a sensitising impurity in cosmetic polymers

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related film formers

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CETYL METHACRYLATE
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DIPENTAERYTHRITYL HEXAMERCAPTOPROPIONATE
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ETHOXYETHYL METHACRYLATE
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ISOBUTYLTRIETHOXYSILANE
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ISOPROPYL TITANIUM TRIISOSTEARATE/PERFLUOROOCTYL TRIETHOXYSILANE CROSSPOLYMER
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ISOPROPYLIDENEDIPHENYL BISOXYHYDROXYPROPYL ACRYLATE
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ISOPROPYLPHTHALIMIDE
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METHOXYPOLYOXYMETHYLENE MELAMINE
Film Former

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.