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DISODIUM STEAROYL GLUTAMATE.

Valuable CAS 38079-62-8 / CLEANSING, HAIR CONDITIONING, SKIN CONDITIONING, SURFACTANT - CLEANSING

Disodium Stearoyl Glutamate is an amino acid-derived surfactant and skin conditioning agent. It expertly functions as an emulsifier, stabilizing oil-in-water formulations and enhancing product texture while providing gentle cleansing. Beyond its formulation benefits, it also offers skin moisturization and creates a delicate protective film to prevent moisture loss.

Summary

cleansing emulsifying hair conditioning skin conditioning surfactant

Science

Mechanism of Action

This ingredient operates as an amphiphilic molecule, featuring both hydrophilic (glutamate head) and lipophilic (stearoyl tail) components. This unique structure allows it to effectively reduce surface tension, thereby stabilizing emulsions by bridging oil and water phases and forming lamellar liquid crystalline structures for uniform particle distribution. On the skin, it gently cleanses by lifting impurities and functions as a conditioning agent, aiding in moisture retention and contributing to a soft, smooth epidermal feel by establishing a subtle protective barrier.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 4.5 – 5.5
0 7 14

Stability

Disodium Stearoyl Glutamate demonstrates stability under typical formulation conditions and maintains its efficacy across skin-relevant pH ranges. Its unique amphiphilic structure enables it to effectively bridge disparate oil and water phases, actively forming lamellar liquid crystalline structures that enhance emulsion stability. It is versatile, accommodating both hot and cold processing methods and can be integrated into either the oil or aqueous phase.

Conflicts

  • Cationic surfactants

Safety

Safety Profile

CIR Status
Safe as used with restrictions
Sensitization risk Low

The CIR Expert Panel deemed Disodium Stearoyl Glutamate safe for cosmetic use under current practices, provided formulations are non-irritating. While generally well-tolerated with rare allergic reactions reported, some individuals may experience mild redness or itching. GHS classification indicates potential for serious eye irritation. A case of allergic contact dermatitis at 1% concentration was reported for Sodium Stearoyl Glutamate, a closely related ingredient.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Disodium Stearoyl Glutamate is a versatile ingredient, offering significant formulation stability as an emulsifier and gentle conditioning benefits suitable for all skin types.

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