Is Crotonaldehyde safe in cosmetics?
Crotonaldehyde has a safety rating of "POOR" in our database. EU status: prohibited. US status: prohibited.
Poor
Cosmetic Ingredient
Crotonaldehyde
INCI: CROTONALDEHYDE
Crotonaldehyde (CAS 4170-30-3 (mixture); 123-73-9 (E-isomer)) is a cosmetic cosmetic ingredient functioning as Not a cosmetic ingredient. EU Regulation 1223/2009 status: prohibited. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 4170-30-3 (mixture); 123-73-9 (E-isomer) →
Auto-generated CPSR Part A draft with source citations
Function
Not a cosmetic ingredient
Safety Rating
POOR
Regulatory Status
EU EU Status
prohibited
US US Status
prohibited
US Notes
Not permitted for intentional cosmetic use. OSHA-regulated workplace exposure limits (PEL 2 ppm). Classified as reasonably anticipated to be a human carcinogen (NTP).
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Crotonaldehyde.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Crotonaldehyde.
Regulatory Flags
endocrine_disruptor
NOAEL Studies Summary
View details ->Public NOAEL study rows linked to Crotonaldehyde by CAS number or substance name.
Studies
8
Lowest NOAEL
10 mg/kg bw/day
Highest NOAEL
20 mg/kg bw/day
ToxValDB_ECHA_IUCLID
ECHA_REACH_reach_study_results_dossiers_23-05-2023.zip
Frequently Asked Questions
Is Crotonaldehyde allowed in the EU?
Crotonaldehyde EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.
What does Crotonaldehyde do in cosmetics?
Crotonaldehyde functions as: Not a cosmetic ingredient. It is classified as a cosmetic ingredient in our database. CAS number: 4170-30-3 (mixture); 123-73-9 (E-isomer).
Compliance Tools
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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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