Science
Mechanism of Action
This ingredient operates as an anionic surfactant, uniquely structured with both hydrophilic (water-attracting) and hydrophobic (oil-attracting) components. This dual nature allows it to significantly lower the surface tension of a product, ensuring smooth and uniform application. As a cleansing agent, it efficiently lifts away dirt, excess oils, and environmental impurities from the skin and hair, producing a satisfying lather. Furthermore, it serves as an emulsifier, critical for maintaining the stability and integrity of formulations that blend dissimilar components like water and oil. Its properties also extend to detergent functions, and in its neutralized form, it is expected to offer some moisturizing and soothing effects on the skin.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
As a sodium carboxylate, this ingredient demonstrates robust stability and activity within alkaline pH environments, being the neutralized form of Trideceth-4 Carboxylic Acid. It effectively enhances overall formula stability and exhibits excellent compatibility with hard water and a diverse range of other surfactants.
Safety
Safety Profile
The CIR Expert Panel has deemed alkyl PEG ethers, including the related Trideceth-4, safe for use in cosmetic formulations under current practices and concentrations, provided the final product is formulated to be non-irritating. A key consideration for formulators is the potential for trace contamination with manufacturing byproducts such as ethylene oxide and 1,4-dioxane.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A versatile anionic surfactant, Sodium Trideceth-4 Carboxylate offers effective cleansing and emulsion stabilization across all skin types, with careful formulation addressing potential impurity concerns.
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References
Sources