Regulatory Status
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Safety Data
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Expert Verdict
Free crotonic acid is corrosive and unsuitable for direct cosmetic use; permitted only in polymerized form with verified residual monomer content specifications in safety assessment.
Frequently Asked Questions
Is Crotonic Acid safe in cosmetics?
Free crotonic acid is corrosive and unsuitable for direct cosmetic use; permitted only in polymerized form with verified residual monomer content specifications in safety assessment. The EU classifies Crotonic Acid as "prohibited". Safety rating: MODERATE.
Is Crotonic Acid allowed in the EU?
Crotonic Acid EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.
What does Crotonic Acid do in cosmetics?
Crotonic Acid functions as: Monomer/co-monomer in hair-fixative polymers. It is classified as a cosmetic ingredient in our database. CAS number: 3724-65-0 (trans-isomer).
What is the Margin of Safety for Crotonic Acid?
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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