Is Ceteth-20 Methacrylate safe in cosmetics?
Ceteth-20 Methacrylate has a safety rating of "MODERATE" in our database. EU status: restricted. US status: permitted.
MODERATE
Cosmetic Ingredient
Ceteth-20 Methacrylate
INCI: CETETH-20 METHACRYLATE
Ceteth-20 Methacrylate (CAS Not specifically assigned (typically polymerized into Acrylates/Ceteth-20 Methacrylate Copolymer)) is a cosmetic cosmetic ingredient functioning as Monomer for film-forming polymers; used in hair fixatives and styling products. EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database.
CAS Number
Not specifically assigned (typically polymerized into Acrylates/Ceteth-20 Methacrylate Copolymer)
View industrial chemical safety profile →
Function
Monomer for film-forming polymers; used in hair fixatives and styling products
Editorial assessment
MODERATE
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
restricted
US US Status
permitted
US Notes
No standalone CIR assessment; copolymer reviewed under acrylates copolymers safety assessment
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Ceteth-20 Methacrylate.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Ceteth-20 Methacrylate — not a computed safety verdict. See the sourced toxicological data above.
Regulatory Flags
potential-allergen
Frequently Asked Questions
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).
Compliance Tools
Check Ceteth-20 Methacrylate compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
Is Ceteth-20 Methacrylate in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Ceteth-20 Methacrylate in your formulation.