Science
Mechanism of Action
This ingredient functions by significantly lowering the interfacial tension between immiscible liquid phases, such as oil and water. As a surfactant, it creates a stable emulsion, allowing for the uniform dispersion of ingredients and maintaining product homogeneity throughout its shelf life.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Sorbitan Triisostearate exhibits robust stability within a broad pH range of 2 to 12. However, extreme pH conditions, particularly in the presence of water, may lead to hydrolysis, potentially compromising formulation integrity.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of sorbitan esters, including Sorbitan Triisostearate, for use in cosmetic products. The highest reported concentration for Sorbitan Triisostearate itself is 9.1% in specific makeup formulations. While the broader family of sorbitan fatty acid esters may be used up to 25%, typical applications are below 10%. A systemic toxicity restriction of 25 mg/kg body weight daily applies to the total sum of sorbitan esters.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Sorbitan Triisostearate is a valuable formulation component, crucial for creating stable and well-blended cosmetic products, with a favorable safety profile and low irritancy.
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References
Sources