Is Trideceth-21 safe in cosmetics?
Trideceth-21 has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Trideceth-21
INCI: TRIDECETH-21
Trideceth-21 (CAS 24938-91-8 (generic polymer)) is a cosmetic cosmetic ingredient functioning as Surfactant – emulsifying; solubilizing agent (high HLB ~16, O/W emulsifier). EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 24938-91-8 (generic polymer) →
Auto-generated CPSR Part A draft with source citations
Function
Surfactant – emulsifying; solubilizing agent (high HLB ~16, O/W emulsifier)
Safety Rating
GOOD
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
No specific restriction; CIR reviewed as part of alkyl PEG ethers
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Trideceth-21.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Trideceth-21.
Frequently Asked Questions
Is Trideceth-21 allowed in the EU?
Trideceth-21 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Trideceth-21 do in cosmetics?
Trideceth-21 functions as: Surfactant – emulsifying; solubilizing agent (high HLB ~16, O/W emulsifier). It is classified as a cosmetic ingredient in our database. CAS number: 24938-91-8 (generic polymer).
Compliance Tools
Check Trideceth-21 compliance across multiple jurisdictions:
Ingredient Decoder
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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