Science
Mechanism of Action
Functions as a structural lipid mimic that integrates directly into the skin's barrier architecture. The cholesterol backbone combined with hydroxy acid chains (C10-40) self-assembles into lamellar bilayer structures that seamlessly replace damaged lipid components, reducing transepidermal water loss while enhancing barrier integrity.
Research
Clinical Evidence
High confidence2.5%
Transparency
Dusting Analysis
Expensive specialty ingredient with clear efficacy thresholds makes dusting economically unfavorable and functionally ineffective
The Formula
Formulation
Stability
Excellent stability in standard formulations but vulnerable to ester hydrolysis at pH extremes below 3.0 or above 9.0
Synergies
- ceramides
- fatty acids
- other barrier lipids
Conflicts
- strong oxidizing agents
- extreme pH environments
Safety
Safety Profile
CIR Expert Panel approval under alkyl esters and cholesterol categories with typical usage 0.1-5.0% in leave-on products
Your Skin
Skin Compatibility
Our Assessment
Verdict
A scientifically sophisticated barrier repair ingredient that delivers measurable results through true biomimetic action rather than simple occlusion.
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References
Sources