Surfactant

SODIUM C12-13 ALKETH SULFATE (FORMERLY SODIUM C12-13 PARETH SULFATE)

CAS 161074-79-9 Updated May 2026

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A C12-13 alkyl ether sulfate (SLES-family) with variable EO content. Effective foaming cleanser commonly used in shampoos and body washes; mildness depends on EO chain length of a given batch.

Function

SURFACTANT - CLEANSING

Skin benefits

Reliable foaming cleanser
Good lather in shampoos and body washes
Standard cost-effective primary surfactant

Known concerns

Variable EO chain length — some lots more irritating
Possible 1,4-dioxane impurity
May strip skin oils with frequent use

References

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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AMMONIUM COCOYL ISETHIONATE

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BIS-(METHOXY PEG-22 EPOXIDIZED SOYATE) PEG-13

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C11-15 ALKETH-7 CARBOXYLIC ACID (FORMERLY C11-15 PARETH-7 CARBOXYLIC ACID)

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C12-13 ALKETH-2 PHOSPHATE (FORMERLY C12-13 PARETH-2 PHOSPHATE)

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C12-13 ALKETH-8 CARBOXYLIC ACID (FORMERLY C12-13 PARETH-8 CARBOXYLIC ACID)

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C12-15 ALKETH-12 CARBOXYLIC ACID

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C12-15 ALKETH-3 PHOSPHATE (FORMERLY C12-15 PARETH-3 PHOSPHATE)

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C12-15 ALKETH-8 CARBOXYLIC ACID (FORMERLY C12-15 PARETH-8 CARBOXYLIC ACID)

Surfactant

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.