Moderate Cosmetic Ingredient

Sodium Lauryl Aspartate

INCI: SODIUM LAURYL ASPARTATE (NOTE: INCI DATABASES MAY LIST AS SODIUM LAUROYL ASPARTATE)

CAS Number
41489-18-3 (referenced for sodium lauroyl aspartate, same ingredient)
Function
Surfactant–cleansing, hair conditioning
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes CIR reviewed — safe with concentration limits: ≤0.2% in leave-on, ≤2% in rinse-off

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

Concentration-limited ingredient — CIR explicitly capped use levels, unlike most other amino acid alkyl amides. Historical use in China reported up to 35% in rinse-off — well above CIR recommendation

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Concern Level: Moderate

Frequently Asked Questions

Is Sodium Lauryl Aspartate safe in cosmetics?

Concentration-limited ingredient — CIR explicitly capped use levels, unlike most other amino acid alkyl amides. Historical use in China reported up to 35% in rinse-off — well above CIR recommendation The EU classifies Sodium Lauryl Aspartate as "permitted". Safety rating: MODERATE.

Is Sodium Lauryl Aspartate allowed in the EU?

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

What does Sodium Lauryl Aspartate do in cosmetics?

Sodium Lauryl Aspartate functions as: Surfactant–cleansing, hair conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 41489-18-3 (referenced for sodium lauroyl aspartate, same ingredient).

What is the Margin of Safety for Sodium Lauryl Aspartate?

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

Check Sodium Lauryl Aspartate compliance across multiple jurisdictions:

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Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
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Substance Compliance
Check compliance across 55 jurisdictions
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
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Heavy Metal Limits
Compare limits across jurisdictions

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