Regulatory Status
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Safety Data
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Expert Verdict
🔴 Known skin sensitizer; CIR restricts to nail-only use; products must include directions to avoid skin contact; cross-reactivity with other methacrylates common; occupational sensitization risk for nail technicians [^1_15][^1_16]
Regulatory Flags
Frequently Asked Questions
Is Sec-Butyl Methacrylate safe in cosmetics?
🔴 Known skin sensitizer; CIR restricts to nail-only use; products must include directions to avoid skin contact; cross-reactivity with other methacrylates common; occupational sensitization risk for nail technicians [^1_15][^1_16] The EU classifies Sec-Butyl Methacrylate as "permitted". Safety rating: MODERATE.
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].
What is the Margin of Safety for Sec-Butyl Methacrylate?
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
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Related Ingredients
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