Science
Mechanism of Action
This ingredient functions as a nonionic emulsifier by significantly reducing the surface tension between immiscible substances, thereby stabilizing emulsions. Beyond its primary role, it conditions the skin, helps disperse pigments evenly, modifies product viscosity, and provides lubrication. Its amphiphilic nature enables it to assist water in mixing with oily residues and dirt, enhancing the cleansing process and allowing for easier rinsing.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 Clinical safety assessments conducted by the Cosmetic Ingredient Review (CIR) Expert Panel have affirmed its safe use in cosmetic and personal care products at concentrations reaching up to 25%.
- 02 A study investigating dermal penetration using a 5% w/w concentration in full-thickness CD-1 nude mouse skin concluded that PEG-8 Dilaurate did not enhance the absorption of ketoprofen.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
A 5% aqueous solution of PEG-8 Dilaurate typically maintains stability within a pH range of 6.0-7.0, though some reports indicate functionality at pH 3.0-5.0. It is prone to oxidation when exposed to temperatures exceeding 50°C for extended periods, potentially forming peroxides; therefore, finished product formulations may require the inclusion of suitable antioxidants.
Safety
Safety Profile
The CIR Expert Panel has concluded that PEG-8 Dilaurate is safe for use in cosmetics at concentrations up to 25%. This safety assessment includes a critical restriction: it should not be applied to damaged or broken skin due to observed kidney toxicity in burn patients treated with PEG-based formulations, although no systemic toxicity or sensitization was noted on intact skin. The FDA has approved related PEG Dilaurate ingredients for indirect food contact applications. Concerns exist regarding potential trace impurities like ethylene oxide and 1,4-dioxane from the manufacturing process, which are known carcinogens; however, these can be effectively controlled through stringent purification steps.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-8 Dilaurate is a valuable functional ingredient for precision skincare, primarily serving as an effective emulsifier and emollient, with a well-established safety profile for intact skin at concentrations up to 25%.
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