Sodium Acrylate/Methylstyrene/Styrene Copolymer

INCI: SODIUM ACRYLATE/METHYLSTYRENE/STYRENE COPOLYMER

CAS Number
Not formally assigned (polymer); related Styrene/Acrylates CAS: 9010-92-8
Function
Film forming, opacifying agent, viscosity controlling
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not restricted in non-nano form; CIR-reviewed acrylates copolymers assessed as safe

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

Critical: Nano form prohibited in EU since Feb 1, 2025; residual styrene monomer is a suspected carcinogen โ€” must be tightly controlled; verify particle size documentation

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Concern Level: High

Frequently Asked Questions

Is Sodium Acrylate/Methylstyrene/Styrene Copolymer safe in cosmetics?

Critical: Nano form prohibited in EU since Feb 1, 2025; residual styrene monomer is a suspected carcinogen โ€” must be tightly controlled; verify particle size documentation The EU classifies Sodium Acrylate/Methylstyrene/Styrene Copolymer as "prohibited". Safety rating: MODERATE.

Is Sodium Acrylate/Methylstyrene/Styrene Copolymer allowed in the EU?

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

What does Sodium Acrylate/Methylstyrene/Styrene Copolymer do in cosmetics?

Sodium Acrylate/Methylstyrene/Styrene Copolymer functions as: Film forming, opacifying agent, viscosity controlling. It is classified as a cosmetic ingredient in our database. CAS number: Not formally assigned (polymer); related Styrene/Acrylates CAS: 9010-92-8.

What is the Margin of Safety for Sodium Acrylate/Methylstyrene/Styrene 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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