Science
Mechanism of Action
This ingredient operates through its distinct molecular architecture: a water-attracting polyglycerol chain linked to a water-repelling, branched isostearic acid. On the skin, it forms a protective layer to diminish trans-epidermal water loss, thus boosting hydration and refining skin texture. In formulations, its amphiphilic nature lowers interfacial tension, facilitating the stable blending of immiscible oil and water phases.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Insoluble in water but disperses effectively in various oils and certain organic solvents. It integrates into the oil phase of emulsions, where it contributes to improving product texture, spreadability, and overall emulsion stability. Typical inclusion rates range from 1.0% to 5.0% in formulations.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Polyglyceryl-10 Nonaisostearate safe for use in cosmetics, provided formulations are designed to be non-irritating. This assessment is part of a broader review of polyglyceryl fatty acid esters. No specific SCCS or FDA determination for this exact ingredient was located, but its inclusion in US cosmetic products aligns with the CIR's conclusion.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Polyglyceryl-10 Nonaisostearate is a valuable ingredient for its dual benefits of enhancing skin hydration and texture while stabilizing complex cosmetic emulsions, suitable for all skin types.
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References
Sources