Science
Mechanism of Action
This non-ionic surfactant utilizes an exceptionally long hydrophobic chain (C40-60) combined with a low degree of ethoxylation (3 moles) to lower interfacial tension between oil and water. Beyond simple stabilization, it organizes into a structured film on the skin's surface, enhancing product longevity and improving the tactile spreadability of heavy oils or UV filters.
Research
Clinical Evidence
High confidence2.5%
Key findings
- 01 Expert assessments by the CIR Panel (2012) confirm safety in cosmetic practices when formulated between 0.1% and 5%.
- 02 Clinical patch testing of analogous long-chain alkyl PEG ethers demonstrated zero evidence of sensitization or significant irritation even in undiluted concentrations.
Transparency
Dusting Analysis
As a functional emulsifier rather than a marketing 'active,' it is rarely included at sub-functional levels; however, concentrations below 0.1% may fail to provide the intended film-forming or stabilizing benefits.
The Formula
Formulation
Stability
Exhibits excellent resistance to hydrolysis and remains highly stable across a wide pH spectrum due to its non-ionic chemical structure.
Synergies
- Physical UV filters (Zinc Oxide, Titanium Dioxide)
- Emollient oils
- Barrier-repair lipids
Conflicts
- Strong oxidizing agents
- Extremely high electrolyte concentrations
Safety
Safety Profile
Purity is paramount; Moumoujus standards require the rigorous removal of ethoxylation byproducts, including 1,4-dioxane and ethylene oxide.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An essential structural component for creating stable, water-resistant, and cosmetically elegant formulations across all skin types.
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References
Sources