Science
Mechanism of Action
By lowering the interfacial tension between aqueous and lipid phases, Ceteareth-100 enables the formation of stable emulsions. Its high Hydrophilic-Lipophilic Balance (HLB) of 18.5 makes it particularly effective at solubilizing stubborn ingredients, while its ability to form a breathable occlusive film helps prevent transepidermal water loss (TEWL).
Research
Clinical Evidence
High confidence5%
Key findings
- 01 Clinical evaluations published in the Journal of Cosmetic Science (2014) demonstrate that concentrations between 1.3% and 10% significantly enhance skin hydration and support barrier repair, notably in compromised skin environments.
Transparency
Dusting Analysis
While often used as a simple texture enhancer at low levels, clinical data suggests that a minimum of 1.3% is required to actively contribute to skin barrier repair and 24-hour hydration benefits.
The Formula
Formulation
Stability
Maintains integrity across a wide pH range and in the presence of hard water; however, high electrolyte or salt concentrations can destabilize the emulsion by lowering the cloud point.
Synergies
- Poorly water-soluble actives
- Cold-process emulsifiers
- Lipophilic skin conditioners
Conflicts
- Phenolic compounds
- High concentrations of electrolytes
- Strong oxidizing agents
Safety
Safety Profile
Safe for general use, though the CIR advises against application on severely damaged or burnt skin due to potential systemic absorption of PEG components. Raw material purity must meet strict <1 ppm 1,4-dioxane standards.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A robust and versatile stabilizer that offers legitimate barrier-support benefits when used at clinical concentrations.
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References
Sources