Is Sec-Butyl Methacrylate safe in cosmetics?
Sec-Butyl Methacrylate has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
MODERATE
Cosmetic Ingredient
Sec-Butyl Methacrylate
INCI: SEC-BUTYL METHACRYLATE [^1_14]
Sec-Butyl Methacrylate (CAS 2998-18-7 [^1_14]) is a cosmetic cosmetic ingredient functioning as Film Forming, Nail Conditioning [^1_14]. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 2998-18-7 [^1_14] →
Function
Film Forming, Nail Conditioning [^1_14]
Editorial assessment
MODERATE
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
CIR reviewed as part of methacrylate ester monomers — safe as used in nail enhancement products when skin contact is avoided [^1_15][^1_16]
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Sec-Butyl Methacrylate.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Sec-Butyl Methacrylate — not a computed safety verdict. See the sourced toxicological data above.
Regulatory Flags
potential-allergen
Frequently Asked Questions
Is Sec-Butyl Methacrylate allowed in the EU?
Sec-Butyl Methacrylate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Sec-Butyl Methacrylate do in cosmetics?
Sec-Butyl Methacrylate functions as: Film Forming, Nail Conditioning [^1_14]. It is classified as a cosmetic ingredient in our database. CAS number: 2998-18-7 [^1_14].
Compliance Tools
Check Sec-Butyl Methacrylate compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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