Science
Mechanism of Action
This ingredient functions as an oil-in-water (O/W) emulsifier by lowering interfacial tension, creating a stable and uniform product texture. On the biological level, it acts as a penetration enhancer by temporarily fluidizing the lipid matrix of the stratum corneum, allowing active molecules like flavonoids to bypass the skin's barrier more efficiently.
Research
Clinical Evidence
High confidence3%
Key findings
- 01 Clinical in vivo data indicates that at a 3% concentration, ceteareths significantly increase the absorption rates of antioxidants like quercetin.
- 02 Patch testing at 1.5% confirms the ingredient is minimally irritating, with no sensitization observed at 1.35% in repeat-insult trials.
Transparency
Dusting Analysis
While primarily used for texture, Ceteareth-14 must be present at levels above 1% to provide the penetration-enhancing benefits seen in clinical literature; levels below 0.5% suggest it is being used strictly as a secondary emulsifier or for label claims.
The Formula
Formulation
Stability
Highly resilient across a vast pH spectrum and during high-temperature manufacturing. It maintains structural integrity in electrolyte-rich environments and is compatible with anionic, cationic, and non-ionic systems.
Synergies
- Flavonoids (Quercetin)
- Lipophilic active ingredients
- Electrolytes
Conflicts
- Strong oxidizing agents
Safety
Safety Profile
Must not be applied to severely damaged or broken skin to prevent systemic absorption. Quality control is essential to ensure the absence of 1,4-dioxane and ethylene oxide impurities.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A reliable and versatile emulsifier that doubles as a penetration modifier, though its moderate comedogenicity profile requires careful balancing in acne-prone formulations.
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References
Sources