Science
Mechanism of Action
This compound operates by leveraging its sorbitol component to attract and bind water molecules within the stratum corneum, significantly boosting skin hydration and moisture retention. Concurrently, the polyglycerol elements enhance emulsification properties within formulations and contribute to a refined, lightweight product texture, further supporting skin hydration.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Sorbitol demonstrates robust stability across a wide pH range of 3 to 10 and is heat-stable up to 100°C, aiding in formulation stabilization, preventing emulsion phase separation, and maintaining viscosity. Polyglycerol ester-water systems generally maintain stability for over two years at their native pH, though lower pH values may reduce this stability.
Conflicts
- May crystallize in formulations with minimal water content.
- Forms water-soluble chelates with numerous divalent and trivalent metal ions under strongly acidic or alkaline conditions.
- Increases the degradation rate of penicillins in neutral aqueous solutions.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that Sorbitol and various Polyglycerin derivatives (Diglycerin, Polyglycerin-3, -6, and -10) are safe for use in cosmetics. Sorbitol is also affirmed as Generally Recognized As Safe (GRAS) by the FDA for human consumption. While a specific SCCS opinion or FDA status for the combined 'Polyglyceryl Sorbitol' is not explicitly available, the established safety of its well-researched individual polyol components provides a strong basis for its inclusion in skincare.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Polyglyceryl Sorbitol is a valuable humectant that enhances skin hydration and elasticity, while also refining product texture to a lightweight, non-greasy feel, supported by the established safety of its polyol constituents.
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