Is Stearoyl Leucine safe in cosmetics?
Stearoyl Leucine has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Stearoyl Leucine
INCI: STEAROYL LEUCINE
Stearoyl Leucine (CAS 82338-73-4 (N-stearoyl-L-leucine)) is a cosmetic cosmetic ingredient functioning as Skin conditioning agent, surfactant (mild cleansing). EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 82338-73-4 (N-stearoyl-L-leucine) →
Auto-generated CPSR Part A draft with source citations
Function
Skin conditioning agent, surfactant (mild cleansing)
Safety Rating
GOOD
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Falls under CIR amino acid alkyl amides review (2017) — safe when formulated to be non-irritating
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Stearoyl Leucine.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Stearoyl Leucine.
Regulatory Flags
potential-allergen
Frequently Asked Questions
Is Stearoyl Leucine allowed in the EU?
Stearoyl Leucine EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Stearoyl Leucine do in cosmetics?
Stearoyl Leucine functions as: Skin conditioning agent, surfactant (mild cleansing). It is classified as a cosmetic ingredient in our database. CAS number: 82338-73-4 (N-stearoyl-L-leucine).
Compliance Tools
Check Stearoyl Leucine compliance across multiple jurisdictions:
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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