Butyldimethicone Methacrylate/Methyl Methacrylate Crosspolymer

INCI: BUTYLDIMETHICONE METHACRYLATE/METHYL METHACRYLATE CROSSPOLYMER

CAS Number
Not applicable (crosspolymer — no single CAS; proprietary polymer)
Function
Film forming, skin conditioning, texture modifier
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Not formally established. Supplier data required.

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Residual methacrylate monomer content must be documented and below safe thresholds; no dedicated safety assessment exists; supplier toxicological dossier essential for CPSR.

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Concern Level: Moderate

Frequently Asked Questions

Is Butyldimethicone Methacrylate/Methyl Methacrylate Crosspolymer safe in cosmetics?

Residual methacrylate monomer content must be documented and below safe thresholds; no dedicated safety assessment exists; supplier toxicological dossier essential for CPSR. The EU classifies Butyldimethicone Methacrylate/Methyl Methacrylate Crosspolymer as "permitted". Safety rating: MODERATE.

Is Butyldimethicone Methacrylate/Methyl Methacrylate Crosspolymer allowed in the EU?

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

What does Butyldimethicone Methacrylate/Methyl Methacrylate Crosspolymer do in cosmetics?

Butyldimethicone Methacrylate/Methyl Methacrylate Crosspolymer functions as: Film forming, skin conditioning, texture modifier. It is classified as a cosmetic ingredient in our database. CAS number: Not applicable (crosspolymer — no single CAS; proprietary polymer).

What is the Margin of Safety for Butyldimethicone Methacrylate/Methyl Methacrylate Crosspolymer?

not established 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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