Science
Mechanism of Action
This ingredient operates as a surfactant by reducing the surface tension between different phases, allowing oil and water to mix. As a cleansing agent, it effectively lifts and disperses sebum and impurities from the skin and hair. Its emulsifying properties enable the formation and stabilization of emulsions, while its role as a rheology modifier contributes to the desired texture and stability of cosmetic products. Its mild nature also helps to mitigate the potential irritation caused by other surfactants in a formulation.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
No data available regarding 'dusting' practices or thresholds for this ingredient.
The Formula
Formulation
Stability
Laureth-12 Carboxylic Acid, similar to Laureth-11 Carboxylic Acid, exhibits stability across a broad pH spectrum, maintaining effectiveness in acidic, neutral, and dilute alkaline environments. While its parent alcohol ethoxylate (Laureth-12) has an optimal range of pH 6.0-7.5 and can hydrolyze at high pH, the carboxylic acid form demonstrates robust pH stability.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Laureth ingredients, including Laureth-12, safe for cosmetic use when formulated to be non-irritating. A potential concern with ethoxylated ingredients is trace contamination with 1,4-dioxane, a manufacturing byproduct, which reputable brands control through purification processes. Laureth-11 Carboxylic Acid, a closely related compound, has no usage restrictions.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Laureth-12 Carboxylic Acid is a valuable, mild surfactant and emulsifier, making it ideal for a wide range of cleansing and emulsion-based formulations, particularly suitable for all skin types including sensitive skin, up to a maximum concentration of 5%.
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References
Sources