Science
Mechanism of Action
On the skin, hydroxystearyl alcohol creates a protective, occlusive film that effectively reduces transepidermal water loss, contributing to smoother and softer skin texture. Within formulations, it functions as an effective emulsifier, enabling the stable dispersion of oil and water phases, thereby preventing product separation. Furthermore, it significantly contributes to the overall product viscosity and consistency, acting as both a thickening and a viscosity-controlling agent.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Hydroxystearyl alcohol is integral for stabilizing oil-in-water emulsions, preventing phase separation and thereby extending the shelf life and maintaining the consistent texture of cosmetic products. It exhibits stability under typical storage conditions.
Safety
Safety Profile
While hydroxystearyl alcohol has not been independently reviewed by the CIR Expert Panel, its safety profile is supported by evidence from related fatty alcohols, such as Stearyl Alcohol, which are considered safe across a broad concentration spectrum (less than 0.1% to greater than 50%). PubChem data further indicates it does not meet GHS hazard criteria based on 25 company reports, affirming its generally low risk profile for cosmetic applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Hydroxystearyl alcohol is a valuable multi-functional ingredient, enhancing skin comfort through emollient properties and ensuring product integrity and luxurious texture as an emulsifier and viscosity modifier.
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References
Sources