Is Styrene/Methylstyrene Copolymer safe in cosmetics?
Styrene/Methylstyrene Copolymer has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
GOOD
Cosmetic Ingredient
Styrene/Methylstyrene Copolymer
Also known as: α-Methylstyrene-styrene copolymer, Benzene, (1-methylethenyl)-, polymer with ethenylbenzene, Styrene, polymer with α-methylstyrene, Styrene, α-methyl-, polymer with styrene, Benzene, ethenyl-, polymer with (1-methylethenyl)benzene
INCI: STYRENE/METHYLSTYRENE COPOLYMER
Styrene/Methylstyrene Copolymer (CAS 9011-11-4) is a cosmetic cosmetic ingredient functioning as Film forming, opacifying. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
Function
Film forming, opacifying
Editorial assessment
GOOD
Preliminary editorial note — not a computed safety verdict.
Chemistry & Identifiers
EC Number
618-465-9
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted; CIR Expert Panel concluded safe in present practices of use and concentration
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Styrene/Methylstyrene Copolymer.
Calculate MoS for your specific formulation with the MoS Calculator.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
Ceased manufacture
Substance Type
SUBSTANCE
SVHC Candidate
No
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Binder
Depilatory
Filler
Regulatory List Membership (1)
FDA Indirect Food Contact Additives
Editorial summary
Preliminary editorial summary for Styrene/Methylstyrene Copolymer — not a computed safety verdict. See the sourced toxicological data above.
Known Synonyms
α-Methylstyrene-styrene copolymer
Benzene, (1-methylethenyl)-, polymer with ethenylbenzene
Styrene, polymer with α-methylstyrene
Styrene, α-methyl-, polymer with styrene
Benzene, ethenyl-, polymer with (1-methylethenyl)benzene
Chemical Function
Binder
Depilatory
Filler
Regulatory Lists
Indirect additives food contact (10/2018)
inert_ingredient; non_food_use; Pesticides
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Styrene/Methylstyrene Copolymer allowed in the EU?
Styrene/Methylstyrene Copolymer EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Styrene/Methylstyrene Copolymer do in cosmetics?
Styrene/Methylstyrene Copolymer functions as: Film forming, opacifying. It is classified as a cosmetic ingredient in our database. CAS number: 9011-11-4.
Is Styrene/Methylstyrene Copolymer used outside cosmetics?
Styrene/Methylstyrene Copolymer also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Styrene/Methylstyrene Copolymer compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
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Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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