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SODIUM N-ISOSTEAROYL METHYLTAURATE.

Valuable CAS - / CLEANSING, SURFACTANT - CLEANSING

SODIUM N-ISOSTEAROYL METHYLTAURATE is a gentle, anionic surfactant derived from fatty acids and the amino acid taurine. It is engineered for effective cleansing by reducing surface tension while respecting the skin's natural moisture balance.

Summary

Surfactant Cleansing Agent Foaming Agent Emulsifying Agent

Science

Mechanism of Action

This ingredient functions by lowering the surface tension of water, allowing it to mix more readily with hydrophobic substances like oils and impurities on the skin. Its unique acyl taurate structure forms stable micelles that encapsulate dirt and sebum, enabling their efficient rinse-off without stripping the skin's protective barrier.

Research

Clinical Evidence

High confidence
Effective range 1–15%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

As a primary or co-surfactant, SODIUM N-ISOSTEAROYL METHYLTAURATE's function is integral to product performance, thus the concept of 'dusting' as under-dosing an active ingredient is not applicable.

The Formula

Formulation

Solubility
Water
Optimal pH 4 – 9
0 7 14

Stability

Demonstrates excellent hydrolytic stability across a broad pH range, making it suitable for a wide variety of cosmetic formulations, including mildly acidic and alkaline systems, and performs well even in hard water.

Synergies

  • Other mild anionic or amphoteric surfactants for enhanced mildness and foam characteristics.
  • Humectants (e.g., Glycerin, Hyaluronic Acid) to support skin hydration in rinse-off formulations.
  • Emollients to further support skin barrier function during cleansing.

Conflicts

  • May exhibit slight incompatibility with highly cationic ingredients at elevated concentrations, potentially leading to precipitation or reduced performance due to its anionic nature.

Safety

Safety Profile

CIR Status
Reviewed by the Cosmetic Ingredient Review (CIR) Expert Panel and deemed safe for use in cosmetics.
Max tested
15%
Pregnancy
Safe
Sensitization risk Low

Its mild profile is often preferred in formulations targeting sensitive skin, minimizing irritation potential compared to more traditional sulfate-based surfactants.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

SODIUM N-ISOSTEAROYL METHYLTAURATE is a highly valuable, mild anionic surfactant prized for its effective cleansing capabilities, robust foam, and superior skin compatibility, making it ideal for a wide range of precision skincare formulations.

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