Excellent Cosmetic Ingredient

Ethylene/Propylene/Styrene Copolymer

INCI: ETHYLENE/PROPYLENE/STYRENE COPOLYMER

CAS Number
Not uniquely assigned (polymer)
Function
Viscosity increasing agent, film former, opacifying agent
Safety Rating
EXCELLENT

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — CIR (2014) concluded safe in present practices of use and concentration

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Residual styrene monomer must be < 100 ppm (typically < 5 ppm via anionic polymerization); not a primary ocular or dermal irritant per EPA Category IV

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Concern Level: Low

Frequently Asked Questions

Is Ethylene/Propylene/Styrene Copolymer safe in cosmetics?

Residual styrene monomer must be < 100 ppm (typically < 5 ppm via anionic polymerization); not a primary ocular or dermal irritant per EPA Category IV The EU classifies Ethylene/Propylene/Styrene Copolymer as "permitted". Safety rating: EXCELLENT.

Is Ethylene/Propylene/Styrene Copolymer allowed in the EU?

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

What does Ethylene/Propylene/Styrene Copolymer do in cosmetics?

Ethylene/Propylene/Styrene Copolymer functions as: Viscosity increasing agent, film former, opacifying agent. It is classified as a cosmetic ingredient in our database. CAS number: Not uniquely assigned (polymer).

What is the Margin of Safety for Ethylene/Propylene/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

Check Ethylene/Propylene/Styrene Copolymer compliance across multiple jurisdictions:

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Ingredient Decoder
Paste a full ingredient list for instant analysis
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82 Allergen Checker
Check for EU declarable fragrance allergens
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Substance Compliance
Check compliance across 55 jurisdictions
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
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Heavy Metal Limits
Compare limits across jurisdictions

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