Science
Mechanism of Action
This ingredient operates by modulating surface tension at the interface of immiscible components, such as oil and water, thereby enabling their stable emulsification. As a cleansing agent, LAURETH-1 attracts and solubilizes dermal impurities, facilitating their efficient removal with water. Furthermore, it acts as a dispersant, contributes to product consistency and thickening, and can enhance the solubility of perfumes and active ingredients within cosmetic matrices. Its presence can also refine product texture and spreadability, and although a weak foaming agent, it contributes to foam generation.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
LAURETH-1 exhibits optimal stability within a pH range of 6.0 to 7.5, reflecting the pH of its 1% aqueous solution. While highly soluble in oils and polar solvents, its aqueous solubility is limited, often resulting in cloudy solutions upon dispersion in water. It functions effectively as a water-in-oil (W/O) emulsifier.
Safety
Safety Profile
The CIR Expert Panel designates LAURETH-1, along with other Laureth ingredients, as safe for use in cosmetic products, provided they are formulated to be non-irritating. Improper formulation may lead to dermal irritation. A critical consideration is the potential presence of trace amounts of 1,4-dioxane, a manufacturing byproduct of the ethoxylation process; robust purification protocols are essential to ensure its removal before incorporation into finished products. Its use is permitted under the general provisions of the EU Cosmetics Regulation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
LAURETH-1 is a valuable multi-functional ingredient, offering essential emulsifying and cleansing properties, contingent on precise formulation to ensure optimal safety and efficacy.
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References
Sources