Science
Mechanism of Action
This ingredient functions by intercalating between skin cells in the stratum corneum to smooth the surface texture and minimize transepidermal water loss (TEWL). Additionally, it acts as a solvent and penetration enhancer for lipophilic actives by increasing their solubility and facilitating their passage through the lipid bilayer.
Research
Clinical Evidence
High confidence22%
Key findings
- 01 Clinical evaluation demonstrates that at 1% concentration, it significantly enhances the dermal penetration of lipophilic molecules by optimizing vehicle solubility.
- 02 Human patch testing indicates that while undiluted forms may show mild reactivity (10-40%), standard cosmetic concentrations remain non-irritating.
- 03 Formulation data confirms its efficacy as a primary texture enhancer and skin-conditioning agent at levels of approximately 22.22%.
Transparency
Dusting Analysis
C14-18 Alkyl Ethylhexanoate is a functional texture and delivery ingredient rather than a marketing-driven active; it is typically used at high percentages to achieve specific rheological properties.
The Formula
Formulation
Stability
Highly stable against oxidation and temperature fluctuations. It should be maintained within a standard physiological pH range to prevent potential hydrolysis into fatty alcohols.
Synergies
- Lipophilic actives
- Vitamin E
- Ceramides
- Sunscreen filters
Conflicts
- Surface-only actives where deep dermal penetration is contraindicated
Safety
Safety Profile
The CIR Expert Panel considers this safe in leave-on products. While the metabolite 2-EHA is studied in oral toxicology, dermal absorption from cosmetics is insufficient to pose a systemic developmental risk.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An essential multitasking ester that bridges the gap between sensory elegance and functional delivery of oil-soluble active ingredients.
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