Polybutyl Methacrylate

INCI: POLYBUTYL METHACRYLATE

CAS Number
9003-63-8
Function
Film forming
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes CIR reviewed within Acrylates Copolymers group โ€” safe as used when formulated to avoid irritation; also FDA-cleared as indirect food additive

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 methacrylic acid and butyl methacrylate monomers must be minimized as methacrylic acid is readily absorbed through skin and mucous membranes; formulate to avoid irritation.

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Concern Level: Low

Frequently Asked Questions

Is Polybutyl Methacrylate safe in cosmetics?

Residual methacrylic acid and butyl methacrylate monomers must be minimized as methacrylic acid is readily absorbed through skin and mucous membranes; formulate to avoid irritation. The EU classifies Polybutyl Methacrylate as "permitted". Safety rating: GOOD.

Is Polybutyl Methacrylate allowed in the EU?

Polybutyl Methacrylate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Polybutyl Methacrylate do in cosmetics?

Polybutyl Methacrylate functions as: Film forming. It is classified as a cosmetic ingredient in our database. CAS number: 9003-63-8.

What is the Margin of Safety for Polybutyl Methacrylate?

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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