Science
Mechanism of Action
This anionic surfactant, synthesized from coconut oil fatty acids and glutamic acid, operates by reducing surface tension between various formulation components. Its amphiphilic structure, featuring both hydrophilic and hydrophobic segments, enables it to encapsulate and lift away dirt, oils, and impurities from the skin and hair, facilitating easy rinsing with water. Beyond cleansing, it promotes a stable and luxurious lather, assists in softening hard water, and preserves the skin's natural lipid barrier, thereby mitigating dryness and irritation. It also serves as an emulsifier, stabilizing product formulations.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Clinical evaluations demonstrate that concentrations between 2% and 30% are effective cleansing agents, particularly beneficial for sensitive and oily skin when compared to standard sulfate-based surfactants in rinse-off formulations.
- 02 Further studies indicate that active matter concentrations from 5% to 25% provide significant mildness and cleansing efficacy while enhancing foam characteristics across various product types.
Transparency
Dusting Analysis
Sodium Cocoyl Glutamate is a well-established and widely accepted surfactant with clear, scientifically-backed functions in skincare. Its benefits are supported by safety assessments and clinical observations, indicating its value is not overstated by marketing claims beyond its proven efficacy.
The Formula
Formulation
Stability
This ingredient exhibits optimal stability and efficacy within a pH range of 5.0 to 7.0. While it can tolerate slightly acidic conditions down to pH 4, its foaming and cleansing performance may diminish at very low pH levels. For peak performance in rinse-off formulations, a pH between 5.5 and 6.5 is generally advised. Foaming capabilities may also decrease at higher pH values.
Conflicts
- strong oxidizing agents
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Sodium Cocoyl Glutamate safe for use in cosmetics, provided formulations are non-irritating. It demonstrates non-irritating properties at concentrations up to 10% and is considered safe for rinse-off applications at levels up to 30%. Both the FDA (as GRAS) and European Cosmetics Regulation affirm its safety. Its overall risk for irritation or sensitization is exceptionally low, with studies supporting its non-allergenic and non-irritating nature.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Sodium Cocoyl Glutamate is a highly valuable, mild surfactant offering effective cleansing and excellent skin compatibility, making it suitable for a broad spectrum of sensitive and general skincare formulations.
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