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Sodium Stearoyl Glutamate

Well toleratedEmulsifieremulsifiersurfactant

No meaningful concern for most people; irritation is possible but rare.

What it is

This emulsifier joins the amino acid glutamic acid to stearic acid. Amino-acid-derived surfactants are among the mildest classes available and are close in structure to materials the skin already handles, so they are favoured in sensitive-skin and natural-certified products.

What it does well

  • Emulsifies with a very low irritation profile

    In cell-based screening, amino-acid-based surfactants were among the mildest categories tested, alongside non-ionic surfactants.

    Moderate evidence

Where the EU stands

No specific restriction

No EU restriction on use or concentration in cosmetics.

Regulation (EC) No 1223/2009 - no annex entry · source ↗

Sources (1)

Every link goes to the original: a journal, a PubMed record or an EU document.

  1. [1]
    The Role of TRPV1 Channel in Cosmetic Safety Evaluation

    ACS Omega · 2026 · doi:10.1021/acsomega.5c10830

    Amino-acid-based and non-ionic surfactants were milder than anionic surfactants in a TRPV1-based skin irritation screen.

Masks that contain Sodium Stearoyl Glutamate