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LAUROYL GLUTAMIC ACID.

Valuable CAS 3397-65-7 / SKIN CONDITIONING

Lauroyl Glutamic Acid is a sophisticated amino acid-derived surfactant prized for its exceptionally mild cleansing capabilities. It efficiently removes impurities without compromising the skin's vital moisture barrier, leaving the complexion clean, hydrated, and comfortable. Its gentle nature makes it an ideal component for precision skincare formulations, especially for sensitive skin.

Summary

Surfactant/Cleansing Emulsifying Skin-softening

Science

Mechanism of Action

This ingredient functions as an amphiphilic surfactant, featuring a hydrophobic lauroyl chain that provides effective cleansing and foaming, alongside a hydrophilic glutamic acid group that enhances skin mildness and moisturization. It works by lifting dirt and impurities from the skin's surface while simultaneously helping to preserve its natural moisture. Exhibiting zwitterionic properties, it offers superior skin compatibility and can actively reduce the irritation potential of other anionic surfactants. Additionally, it acts as an emulsifier, dispersant, and wetting agent, contributing to stable product textures.

Research

Clinical Evidence

High confidence
Effective range ≤10%
Optimal

N/A

Key findings

  1. 01 Demonstrated low irritation potential on nude mouse skin.
  2. 02 Human studies (using Sodium Lauroyl Glutamate, a related compound covered by CIR's assessment) showed no dermal irritation.
  3. 03 Human studies (using Sodium Lauroyl Glutamate) found it did not cause sensitization or phototoxicity.

Transparency

Dusting Analysis

Not commonly dusted

As a primary surfactant and emulsifier, Lauroyl Glutamic Acid is typically incorporated at functional concentrations to achieve its intended effects, thereby making 'dusting' at ineffective levels uncommon.

The Formula

Formulation

Solubility
Water
Optimal pH 5 – 7
0 7 14

Stability

Optimal performance and mildness are observed within a pH range of 5.0 to 7.0. Formulations should avoid strong alkaline conditions (exceeding pH 8.0), as this may diminish its efficacy and stability. For ideal foaming stability, particularly for its sodium salt, a pH of 6.0-6.5 is recommended. It is dispersible in water and soluble in alkalis.

Synergies

  • Reduces irritation potential of other anionic surfactants

Conflicts

  • Strong alkaline conditions (pH > 8.0)

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Sensitization risk Low

The CIR Expert Panel concluded that amino acid alkyl amides, including Lauroyl Glutamic Acid, are safe for use in cosmetics under current practices and concentrations when formulated to be non-irritating. Studies indicate a low incidence of allergic reactions or skin irritation. While not explicitly FDA 'approved', it complies with international cosmetic standards and is widely utilized.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Lauroyl Glutamic Acid is a valuable, mild amino acid-derived surfactant offering effective yet gentle cleansing and formulation stability, making it suitable for all skin types, including sensitive.

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