Science
Mechanism of Action
It functions as a surface-active agent that adsorbs at the oil-water interface, drastically reducing surface tension to prevent emulsion separation. By organizing into lamellar structures, it mimics the skin's natural lipid bilayer, which enhances the stability of the formulation while ensuring that active ingredients and minerals are evenly dispersed across the stratum corneum.
Research
Clinical Evidence
High confidence1.5%
Key findings
- 01 Safety assessments by the CIR indicate that Ceteareth-n family members are non-sensitizers and produce minimal irritation in both acute and long-term (21-day) patch testing.
- 02 Structural analogs tested at concentrations up to 10% demonstrate a high safety profile with only minimal dermal irritation observed.
- 03 Rare clinical reports of contact dermatitis have been noted with related phosphate esters (Triceteareth-4 Phosphate), emphasizing the importance of high-purity sourcing.
Transparency
Dusting Analysis
As a functional emulsifier, it is rarely 'dusted' for marketing purposes. It is typically included at the precise levels (1-5%) required to achieve emulsion stability and pigment suspension.
The Formula
Formulation
Stability
Exhibits exceptional thermal stability and maintains integrity across a broad pH spectrum. It shows high electrolyte tolerance (up to 1% NaCl), making it ideal for complex formulas.
Synergies
- UV filters
- Polar oils
- Mineral pigments
Conflicts
- Strong cationic surfactants
- Concentrated polyvalent metal ions
Safety
Safety Profile
Safety is contingent on minimizing the impurity 1,4-dioxane; Moumoujus standards require levels below 1 ppm, exceeding the standard safety threshold of 10 ppm.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A highly stable and skin-compatible emulsifier essential for creating elegant, uniform dispersions of sunscreens and pigments.
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References
Sources