Sodium C12-13 Alkyl Sulfate

INCI: SODIUM C12-13 ALKYL SULFATE

CAS Number
Not uniquely assigned for the C12-13 blend (C12 component = SLS, CAS 151-21-3)
Function
Surfactant – Cleansing
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted; CIR-reviewed as part of alkyl sulfate group (safe when formulated to be non-irritating)

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Dominant C12 (lauryl) fraction = significant defatting and barrier disruption potential; known to cause irritant contact dermatitis at concentrations >1% in leave-on; formulate to be non-irritating

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Concern Level: Moderate

Frequently Asked Questions

Is Sodium C12-13 Alkyl Sulfate safe in cosmetics?

Dominant C12 (lauryl) fraction = significant defatting and barrier disruption potential; known to cause irritant contact dermatitis at concentrations >1% in leave-on; formulate to be non-irritating The EU classifies Sodium C12-13 Alkyl Sulfate as "permitted". Safety rating: MODERATE.

Is Sodium C12-13 Alkyl Sulfate allowed in the EU?

Sodium C12-13 Alkyl Sulfate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Sodium C12-13 Alkyl Sulfate do in cosmetics?

Sodium C12-13 Alkyl Sulfate functions as: Surfactant – Cleansing. It is classified as a cosmetic ingredient in our database. CAS number: Not uniquely assigned for the C12-13 blend (C12 component = SLS, CAS 151-21-3).

What is the Margin of Safety for Sodium C12-13 Alkyl Sulfate?

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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