Phenol/Styrene/Methylstyrene Copolymer

INCI: PHENOL/STYRENE/METHYLSTYRENE COPOLYMER

CAS Number
Not uniquely assigned (polymer)
Function
Film forming, hair fixative
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted in cosmetics under general provisions; no specific FDA restriction

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Potential residual monomer concern โ€” unreacted phenol, styrene, and methylstyrene monomers must be controlled. Styrene is classified Carc. 2 (IARC Group 2A). Residual monomer specifications should be documented in CPSR. Inhalation exposure in spray products warrants pulmonary safety assessment.

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Concern Level: Moderate

Frequently Asked Questions

Is Phenol/Styrene/Methylstyrene Copolymer safe in cosmetics?

Potential residual monomer concern โ€” unreacted phenol, styrene, and methylstyrene monomers must be controlled. Styrene is classified Carc. 2 (IARC Group 2A). Residual monomer specifications should be documented in CPSR. Inhalation exposure in spray products warrants pulmonary safety assessment. The EU classifies Phenol/Styrene/Methylstyrene Copolymer as "permitted". Safety rating: GOOD.

Is Phenol/Styrene/Methylstyrene Copolymer allowed in the EU?

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

What does Phenol/Styrene/Methylstyrene Copolymer do in cosmetics?

Phenol/Styrene/Methylstyrene Copolymer functions as: Film forming, hair fixative. It is classified as a cosmetic ingredient in our database. CAS number: Not uniquely assigned (polymer).

What is the Margin of Safety for Phenol/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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Is Phenol/Styrene/Methylstyrene Copolymer in Your Products?

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