Science
Mechanism of Action
This ingredient functions multi-directionally on the skin. Primarily, it stabilizes formulations by expertly blending disparate oil and water phases as an emulsifier, ensuring product integrity and preventing separation. On the skin's surface, it acts as an emollient, smoothing epidermal texture by filling microscopic intercellular gaps, thereby fortifying the moisture barrier and diminishing transepidermal water loss. Furthermore, its surfactant properties reduce surface tension, facilitating the gentle removal of surface impurities such as dirt, oil, and makeup.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Polyglyceryl-10 Triisostearate demonstrates broad solubility, dissolving readily in water, ethanol, 1,2-propanediol, and ester oils, although it is insoluble in paraffin oil, isopropyl myristate, and vegetable oil. It is highly valued for its excellent dispersibility and stabilization capabilities, particularly in toners and inorganic powder dispersions, and is suitable for complex emulsions like water-in-oil foundation creams and physical sunscreen formulas, consistently preventing formula separation over time.
Conflicts
- Individuals prone to Malassezia folliculitis (fungal acne) should approach with caution, as this ingredient may potentially exacerbate the condition.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that polyglyceryl fatty acid esters, including Polyglyceryl-10 Triisostearate, are safe for cosmetic use under current practices and concentrations, provided formulations are designed to be non-irritating.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Polyglyceryl-10 Triisostearate is a versatile, low-risk ingredient valued for its emulsifying, emollient, and mild cleansing properties, suitable for a broad range of cosmetic formulations and skin types.
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