Science
Mechanism of Action
Its core mechanism involves significantly reducing the interfacial tension between immiscible oil and water, thereby enabling the formation of stable, finely dispersed emulsions. As a viscosity modifier, it contributes to desirable product consistency. Additionally, related PEGylated castor oils demonstrate emollient properties, supporting skin barrier integrity by forming a protective layer that mitigates moisture loss and boosts hydration retention.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
As a functional formulation aid rather than a primary active, the concept of 'dusting' does not apply to this ingredient.
The Formula
Formulation
Stability
This hydrophilic, nonionic surfactant is highly stable in aqueous systems, enhancing the long-term clarity and integrity of solubilized products. It performs optimally in low alcohol content formulations and exhibits inherent microbiological stability, reducing the necessity for additional preservation.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel deemed PEGylated castor oils, including this one, safe under current cosmetic practices, provided formulations ensure a non-irritating profile. A trace by-product, 1,4-dioxane, may occur from the ethoxylation process but is controllable through rigorous purification steps. Its base, castor oil, is FDA-approved for direct food use, and PEG castor oils may feature as indirect food additives in textiles.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While a highly effective and stable formulation aid with low irritancy, its high comedogenicity raises significant concerns for precision facial skincare applications.
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