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SODIUM OLEYL METHYL ISETHIONATE.

Valuable CAS 880353-25-3 / CLEANSING, SURFACTANT - FOAM BOOSTING

Sodium Oleyl Methyl Isethionate is an anionic surfactant primarily utilized in skincare formulations for its effective cleansing capabilities. It is recognized for producing a rich, creamy lather and ensuring thorough rinsability, leaving the skin feeling soft and mildly conditioned after use.

Cleansing Agent Surfactant Foaming Agent

Science

As an anionic surfactant, Sodium Oleyl Methyl Isethionate functions by effectively interacting with and emulsifying dirt, excess oil, and environmental pollutants present on the skin's surface. This action allows these impurities to be easily lifted and rinsed away with water, promoting a clean complexion without stripping essential moisture.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 4.5 – 8.5
0 7 14

Stability

This ingredient maintains optimal stability in aqueous formulations within a pH range of 4.5 to 8.5, aligning with the stability profiles of related isethionate surfactants. While most stable between pH 6-8 at ambient temperatures, hydrolysis may occur outside the broader 4.5-8.5 range.


Safety

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of isethionate salts, including Sodium Oleyl Methyl Isethionate, for their use in cosmetic products. The panel concluded these ingredients are safe under current practices and concentrations, provided formulations are designed to be non-irritating. While a precise maximum concentration for this specific ingredient was not detailed, closely related isethionate salts have been deemed safe in rinse-off products at concentrations up to 50% and in leave-on products up to 17%.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Valuable

Sodium Oleyl Methyl Isethionate is a valuable cleansing agent known for its gentle yet effective performance, suitable for a wide range of skin types and cosmetic applications.


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References