Regulatory Status
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Safety Data
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Expert Verdict
Residual styrene monomer is classified as possibly carcinogenic (IARC Group 2A); supplier CoA should confirm residual styrene is below detection limits. Use concentration capped at 1% in leave-on per CIR.
Frequently Asked Questions
Is Isobutylene/Styrene Copolymer safe in cosmetics?
Residual styrene monomer is classified as possibly carcinogenic (IARC Group 2A); supplier CoA should confirm residual styrene is below detection limits. Use concentration capped at 1% in leave-on per CIR. The EU classifies Isobutylene/Styrene Copolymer as "permitted". Safety rating: GOOD.
Is Isobutylene/Styrene Copolymer allowed in the EU?
Isobutylene/Styrene Copolymer EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Isobutylene/Styrene Copolymer do in cosmetics?
Isobutylene/Styrene Copolymer functions as: Film former; viscosity controlling; thickener/stabilizer. It is classified as a cosmetic ingredient in our database. CAS number: 9011-12-5 [^1_15][^1_16].
What is the Margin of Safety for Isobutylene/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.
Compliance Tools
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Related Ingredients
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