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SODIUM LAUROYL GLUTAMATE.

Valuable CAS 29923-31-7 / 29923-34-0 / 42926-22-7 / 98984-78-2 / ANTISTATIC, HAIR CONDITIONING, SURFACTANT - CLEANSING

A mild, amino acid-based surfactant derived from natural sources, Sodium Lauroyl Glutamate efficiently cleanses the skin and hair while providing conditioning benefits. It maintains the skin's natural moisture balance and helps to reduce irritation potential in cleansing formulations, making it ideal for sensitive skin.

Summary

surfactant cleanser foaming agent skin conditioning hair conditioning antistatic emulsifier irritation reducer

Science

Mechanism of Action

Sodium Lauroyl Glutamate functions primarily as a surfactant by reducing the surface tension of water, which facilitates the mixing of oil and water components to form stable emulsions. On the skin, it effectively lifts and removes dirt and impurities without stripping natural oils, contributing to a soft and hydrated feel. It also acts as a foaming agent and a skin conditioning ingredient, enhancing the overall dermatological profile of product formulations by mitigating irritation.

Research

Clinical Evidence

High confidence
Effective range 1–40%
Optimal

N/A

Key findings

  1. 01 Clinical evaluation of a 1% Sodium Lauroyl Glutamate solution demonstrated significantly lower visual irritation scores and reduced transepidermal water loss (TEWL) compared to Sodium Lauryl Sulfate, affirming its mildness and capacity to improve skin barrier function.
  2. 02 Human Repeat Insult Patch Tests (HRIPT) have affirmed the ingredient's safety in products containing concentrations up to 30%, which were tested at dilutions ranging from 1% to 10%, supporting its non-irritating profile in cosmetic applications.

Transparency

Dusting Analysis

Not commonly dusted

No data suggests Sodium Lauroyl Glutamate is commonly associated with dusting or carries a specific dusting threshold.

The Formula

Formulation

Solubility
Water
Optimal pH 6 – 6.5
0 7 14

Stability

Sodium Lauroyl Glutamate exhibits excellent foaming performance across a pH range of 5.0-9.0, with peak stability and optimal skin feel observed between pH 6.0-6.5. Its aqueous solubility is notably temperature-dependent; while less than 0.05g/100mL at pH 5.5 at 25°C, it dramatically increases to over 30g/100mL at 75°C. It is well-suited for weakly acidic and non-sensitizing product formulations.

Synergies

  • Reduces the irritation potential of other surfactants, such as Sodium Lauryl Sulfate, when used in mixed formulations, enhancing overall dermatological properties.

Conflicts

  • strong acids
  • strong alkalis
  • strong oxidizing agents
  • strong reducing agents

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
40%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Sodium Lauroyl Glutamate safe for cosmetic use when formulated to be non-irritating, supporting concentrations up to 40%. While the raw concentrated chemical is noted as an irritant by safety data sheets, this typically refers to its undiluted form. In cosmetic formulations, it is generally considered mild and poses a low risk of allergic reactions or skin irritation.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Sodium Lauroyl Glutamate is a highly valuable, mild surfactant offering effective cleansing and conditioning benefits with low irritation risk, making it an excellent choice for diverse precision skincare formulations across all skin types.

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