Science
Mechanism of Action
This ingredient functions by reinforcing the skin's natural barrier. Derived from cholesterol, a key lipid, it contributes to the formation of organized lamellar structures within the stratum corneum alongside ceramides and fatty acids. This structural support effectively minimizes transepidermal water loss and protects the skin from environmental stressors, resulting in enhanced hydration and a smoother skin texture.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
No specific optimal pH range for stability was identified. It functions effectively as a viscosity controlling agent within cosmetic formulations.
Safety
Safety Profile
While Cholesteryl Hydroxystearate itself has not been directly reviewed by the CIR Expert Panel, its constituent parts—Cholesterol and Hydroxystearic Acid—have both been deemed safe for cosmetic use. Specifically, Cholesterol is considered safe up to 0.25% in non-spray face and neck applications and moisturizing products. The ingredient itself does not meet GHS hazard criteria according to 100% of 44 reports, with no identified hazard or precautionary statements, suggesting a low risk profile.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A valuable skin conditioning agent and emollient that supports the skin barrier function by mimicking natural lipids, promoting hydration and softness.
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