Regulatory Status
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Safety Data
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Expert Verdict
Styrene structural backbone with IARC 2A carcinogen concern for parent compound; reactive vinyl group; very limited cosmetic safety data; verify Annex II listing before formulation.
Regulatory Flags
Frequently Asked Questions
Is 4-T-Butyl Styrene safe in cosmetics?
Styrene structural backbone with IARC 2A carcinogen concern for parent compound; reactive vinyl group; very limited cosmetic safety data; verify Annex II listing before formulation. The EU classifies 4-T-Butyl Styrene as "prohibited". Safety rating: POOR.
Is 4-T-Butyl Styrene allowed in the EU?
4-T-Butyl Styrene EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.
What does 4-T-Butyl Styrene do in cosmetics?
4-T-Butyl Styrene functions as: Masking / fragrance (limited cosmetic use). It is classified as a cosmetic ingredient in our database. CAS number: 1746-23-2.
What is the Margin of Safety for 4-T-Butyl Styrene?
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.
Compliance Tools
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Related Ingredients
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