Science
Mechanism of Action
Ceteth-3 operates by reducing interfacial tension to create stable, uniform emulsions. Beyond texture stabilization, it functions as a chemical penetration enhancer by transiently modifying the lipid lamellar organization within the stratum corneum, allowing other active molecules to permeate the skin barrier more efficiently.
Research
Clinical Evidence
High confidence0.3%
Key findings
- 01 Demonstrated a high safety profile with zero irritation reported on intact human skin during clinical trials.
- 02 Established as the industry benchmark for maximum concentration in leave-on skincare formulations to ensure optimal safety.
Transparency
Dusting Analysis
As a functional emulsifier and delivery aid rather than a 'hero' active, Ceteth-3 is rarely used for marketing claims. However, concentrations below 0.1% may be insufficient to provide meaningful penetration-enhancing benefits.
The Formula
Formulation
Stability
Exhibits exceptional chemical stability across a wide pH spectrum; it remains resilient against both acidic and alkaline shifts and is highly tolerant of electrolytes and salts.
Synergies
- Lipophilic active ingredients
- Non-ionic co-emulsifiers
- Electrolyte-heavy serums
Conflicts
- Strong oxidizing agents
Safety
Safety Profile
Formula purity is paramount; manufacturers must ensure residual impurities like 1,4-dioxane and ethylene oxide remain below 1 ppm. Due to its penetration-enhancing nature, it should not be applied to broken or severely abraded skin.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An essential functional component for stabilizing complex formulas and ensuring that active ingredients successfully navigate the skin's lipid barrier.
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References
Sources