Science
Mechanism of Action
This ingredient functions as a mild anionic surfactant by decreasing the surface tension of liquids, which facilitates the removal of impurities from skin and hair. Its hydrophilic glutamic acid group is key to its mildness, helping to prevent post-wash dryness and supporting skin hydration. Furthermore, it acts as a hair conditioning agent, contributing to improved combability, softness, shine, and volume.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
TEA-Lauroyl Glutamate is a surfactant and not typically subject to 'dusting' concerns, which commonly apply to ingredients that are overused or problematic at low, ineffective concentrations.
The Formula
Formulation
Stability
Optimal efficacy is observed within a pH range of 5 to 7. Stability is maintained in acidic and weakly acidic formulations, but exposure to strong alkaline conditions (pH > 8) should be avoided as it may compromise the ingredient's mildness.
Conflicts
- Cationic surfactants (may reduce efficacy or stability)
- Strong alkaline conditions (pH > 8) (impairs mildness)
- Nitrosating agents (potential for nitrosamine formation if TEA component contains impurities)
Safety
Safety Profile
The CIR Expert Panel concludes that amino acid alkyl amides, including TEA-Lauroyl Glutamate, are safe for use in cosmetics when formulated to be non-irritating and within current industry practices and concentrations. This ingredient is also subject to restrictions under Annex III of the EC Cosmetics Regulation, which may pertain to purity criteria, maximum concentration, or specific product categories. While there is a theoretical concern about nitrosamine formation from the triethanolamine (TEA) component if impurities are present and combined with nitrosating agents, a global strategy involving stringent raw material purity and careful formulation practices is implemented to control this risk. Ingestion may cause mild irritation to the mouth, throat, and stomach, but no significant adverse effects are anticipated from normal cosmetic use.
Your Skin
Skin Compatibility
Our Assessment
Verdict
TEA-Lauroyl Glutamate is a valuable, mild anionic surfactant offering effective cleansing, hair conditioning, and hydration support across all skin types, provided it is formulated within recommended pH ranges and safety guidelines.
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