Ceteth-20 Methacrylate

INCI: CETETH-20 METHACRYLATE

CAS Number
Not specifically assigned (typically polymerized into Acrylates/Ceteth-20 Methacrylate Copolymer)
Function
Monomer for film-forming polymers; used in hair fixatives and styling products
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status restricted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes No standalone CIR assessment; copolymer reviewed under acrylates copolymers safety assessment

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
high
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Residual methacrylate monomer is a known sensitizer; must verify residual monomer below 100 ppm and control for 1,4-dioxane.

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Concern Level: Moderate

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is Ceteth-20 Methacrylate safe in cosmetics?

Residual methacrylate monomer is a known sensitizer; must verify residual monomer below 100 ppm and control for 1,4-dioxane. The EU classifies Ceteth-20 Methacrylate as "restricted". Safety rating: MODERATE.

Is Ceteth-20 Methacrylate allowed in the EU?

Ceteth-20 Methacrylate EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.

What does Ceteth-20 Methacrylate do in cosmetics?

Ceteth-20 Methacrylate functions as: Monomer for film-forming polymers; used in hair fixatives and styling products. It is classified as a cosmetic ingredient in our database. CAS number: Not specifically assigned (typically polymerized into Acrylates/Ceteth-20 Methacrylate Copolymer).

What is the Margin of Safety for Ceteth-20 Methacrylate?

not established 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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