Science
Mechanism of Action
This ingredient operates via enzymatic decomposition on the skin's surface, releasing its constituent lipids: cholesterol and oleic acid. Cholesterol, a critical component representing approximately 25% of the stratum corneum's lipid matrix, acts as an emollient and barrier stabilizer. Oleic acid contributes to the skin's essential free fatty acid pool. Together, these released biomimetic components are instrumental in fortifying the skin's natural barrier function, enhancing hydration, and are particularly effective in supporting barrier repair when combined with ceramides.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Cholesteryl Oleate is a crystalline solid with a melting point between 40-45°C. For optimal stability and to prevent degradation, storage at -20°C is recommended, maintaining stability for at least 4 years. On the skin, it is designed to be enzymatically degraded by lipase enzymes.
Synergies
- Ceramides
- Free fatty acids
Safety
Safety Profile
While no specific Cosmetic Ingredient Review (CIR) report for Cholesteryl Oleate exists, its safety is inferred from its parent compound, Cholesterol, which the CIR Expert Panel deemed safe as used. The maximum reported concentration for Cholesterol in relevant non-spray products was 0.25% in 2022. No specific SCCS opinion was identified. Products containing cholesterol have received FDA 510(k) clearance as medical devices for barrier repair, underscoring the physiological relevance of its breakdown products.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Cholesteryl Oleate is a valuable ingredient for advanced skincare formulations, effectively delivering essential lipids to support and fortify the skin's natural barrier function.
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