Science
Mechanism of Action
This ingredient operates as a surfactant and emulsifying agent, crucial for creating stable cosmetic emulsions by facilitating the uniform dispersion of immiscible oil and water phases. Specifically, it can aid in the formation of water-in-oil emulsions, which are known to contribute to enhanced skin protection by mitigating trans-epidermal water loss and consequently boosting skin hydration levels.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Sorbitan Undecylenate, as a sorbitan fatty acid monoester, demonstrates general thermal stability, making it robust for various formulation processes. Its emulsifying properties are essential for homogenizing oil and water. It can be effectively incorporated into cold-process formulations, a benefit for preserving the activity of heat-sensitive ingredients.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded in 2014 that Sorbitan Undecylenate is safe for use in cosmetic applications, as part of a review covering 21 sorbitan esters. While some sorbitan esters are reported at concentrations up to 25%, most are typically used below 10%. The highest reported use concentration for any sorbitan ester in the reviewed data was 9.1% (for sorbitan triisostearate). This class of ingredients broadly holds extensive FDA approvals as emulsifiers and stabilizers across food, cosmetic, and medicinal sectors, further supporting its safety profile.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A valuable formulation ingredient, Sorbitan Undecylenate effectively stabilizes emulsions and supports skin hydration, demonstrating a robust safety profile and broad skin compatibility.
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References
Sources