Hydrogenated Butylene/Ethylene/Styrene Copolymer

INCI: HYDROGENATED BUTYLENE/ETHYLENE/STYRENE COPOLYMER

CAS Number
Not individually assigned per CosIng
Function
Skin conditioning – emollient; viscosity controlling
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — covered under CIR styrene/vinyl-type copolymer assessment: safe as used (2014)

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

Residual styrene monomer consideration requires CoA specification for residual styrene content. Widely used in lip products and colour cosmetics.

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Concern Level: Moderate

Frequently Asked Questions

Is Hydrogenated Butylene/Ethylene/Styrene Copolymer safe in cosmetics?

Residual styrene monomer consideration requires CoA specification for residual styrene content. Widely used in lip products and colour cosmetics. The EU classifies Hydrogenated Butylene/Ethylene/Styrene Copolymer as "permitted". Safety rating: GOOD.

Is Hydrogenated Butylene/Ethylene/Styrene Copolymer allowed in the EU?

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

What does Hydrogenated Butylene/Ethylene/Styrene Copolymer do in cosmetics?

Hydrogenated Butylene/Ethylene/Styrene Copolymer functions as: Skin conditioning – emollient; viscosity controlling. It is classified as a cosmetic ingredient in our database. CAS number: Not individually assigned per CosIng.

What is the Margin of Safety for Hydrogenated Butylene/Ethylene/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.

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