Butyl Acrylate/Styrene Copolymer

INCI: BUTYL ACRYLATE/STYRENE COPOLYMER

CAS Number
Not publicly assigned in CosIng (polymer)
Function
Film forming, opacifying
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes CIR (2014): Reviewed in Safety Assessment of Styrene and Vinyl-type Styrene Copolymers โ€” safe as used in cosmetics. Also covered by CIR acrylates copolymers (2019)

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 is classified Carc. 2, Repr. 2 under CLP โ€” must be controlled to the lowest technically achievable level; nano-form use requires separate SCCS evaluation

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Concern Level: Low

Frequently Asked Questions

Is Butyl Acrylate/Styrene Copolymer safe in cosmetics?

Residual styrene monomer is classified Carc. 2, Repr. 2 under CLP โ€” must be controlled to the lowest technically achievable level; nano-form use requires separate SCCS evaluation The EU classifies Butyl Acrylate/Styrene Copolymer as "permitted". Safety rating: GOOD.

Is Butyl Acrylate/Styrene Copolymer allowed in the EU?

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

What does Butyl Acrylate/Styrene Copolymer do in cosmetics?

Butyl Acrylate/Styrene Copolymer functions as: Film forming, opacifying. It is classified as a cosmetic ingredient in our database. CAS number: Not publicly assigned in CosIng (polymer).

What is the Margin of Safety for Butyl Acrylate/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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