Lauryl Aspartic Acid

INCI: LAURYL ASPARTIC ACID

CAS Number
31262-66-5 / 45259-30-1
Function
Skin conditioning (amino acid–lipid conjugate)
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — CIR assessed the broader amino acid alkyl amides family (2017) and concluded safe when formulated to be non-irritating; sodium lauroyl aspartate specifically included

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Dual CAS numbers (L-form vs. racemic); ensure supplier COA specifies correct isomer. Formulate to be non-irritating per CIR qualification. Safety relies on read-across within amino acid alkyl amide class.

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Concern Level: Low

Frequently Asked Questions

Is Lauryl Aspartic Acid safe in cosmetics?

Dual CAS numbers (L-form vs. racemic); ensure supplier COA specifies correct isomer. Formulate to be non-irritating per CIR qualification. Safety relies on read-across within amino acid alkyl amide class. The EU classifies Lauryl Aspartic Acid as "permitted". Safety rating: GOOD.

Is Lauryl Aspartic Acid allowed in the EU?

Lauryl Aspartic Acid EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Lauryl Aspartic Acid do in cosmetics?

Lauryl Aspartic Acid functions as: Skin conditioning (amino acid–lipid conjugate). It is classified as a cosmetic ingredient in our database. CAS number: 31262-66-5 / 45259-30-1.

What is the Margin of Safety for Lauryl Aspartic 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.

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