Science
Mechanism of Action
This ingredient functions as a surfactant by reducing surface tension between differing components, allowing substances like oil and water to combine into stable emulsions. Possessing both hydrophilic and hydrophobic segments, LAURETH-13 effectively interacts with and suspends oils, dirt, and other residues on the skin, simplifying their rinse-off. It also contributes to the desired foaming action in various cleansing products.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
As an ethoxylated alcohol, LAURETH-13 generally demonstrates robust chemical and thermal stability. Its derivative, Sodium Laureth-13 Carboxylate, is noted for excellent stability across a range of pH conditions (both alkaline and acidic) and in the presence of electrolytes. A 10% aqueous solution of this derivative typically maintains a pH between 7.0 and 8.5.
Safety
Safety Profile
LAURETH-13 itself has not undergone a specific Cosmetic Ingredient Review (CIR) safety assessment. While its derivative, Sodium Laureth-13 Carboxylate, is listed in the FDA's Substance Registration System, concerns regarding potential contamination with ethylene oxide and 1,4-dioxane have been raised by EWG for this derivative. Related surfactants, such as Sodium Laureth Sulfate, have been assessed by CIR with noted potential for dermal and ocular irritation, though such irritation is rarely observed in real-world product formulations due to careful compounding.
Your Skin
Skin Compatibility
Our Assessment
Verdict
LAURETH-13 serves as a valuable functional ingredient in cosmetic formulations due to its surfactant and emulsifying properties, yet specific safety and skin compatibility data for the ingredient itself remain largely unreviewed.
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