Styrene/Methylstyrene Copolymer

INCI: STYRENE/METHYLSTYRENE COPOLYMER

CAS Number
9011-11-4
Function
Film forming, opacifying
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted; CIR Expert Panel concluded safe in present practices of use and concentration

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Residual styrene monomer can be absorbed through skin and has neurotoxic potential; ensure residual monomer specification compliance

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Concern Level: Moderate

Frequently Asked Questions

Is Styrene/Methylstyrene Copolymer safe in cosmetics?

Residual styrene monomer can be absorbed through skin and has neurotoxic potential; ensure residual monomer specification compliance The EU classifies Styrene/Methylstyrene Copolymer as "permitted". Safety rating: GOOD.

Is Styrene/Methylstyrene Copolymer allowed in the EU?

Styrene/Methylstyrene Copolymer EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Styrene/Methylstyrene Copolymer do in cosmetics?

Styrene/Methylstyrene Copolymer functions as: Film forming, opacifying. It is classified as a cosmetic ingredient in our database. CAS number: 9011-11-4.

What is the Margin of Safety for Styrene/Methylstyrene Copolymer?

adequate 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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