Science
Mechanism of Action
This humectant draws and binds water within the stratum corneum, supporting optimal moisture levels. Its increased molecular size facilitates slower penetration, leading to extended hydration within the upper skin layers. Polyglycerin-3 actively contributes to improving skin barrier integrity, mechanical properties, and may mitigate lipid phase transitions in the stratum corneum, offering protection against irritants. In-vitro research additionally indicates potential anti-inflammatory benefits.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Polyglycerin-3 acts as a robust stabilizer, improving product consistency and ensuring uniform distribution of active compounds. It functions as an effective surfactant and emulsifier, capable of bridging immiscible oil and water phases to create stable water-in-oil (W/O) and oil-in-water (O/W) emulsions. It demonstrates high compatibility across a diverse range of cosmetic ingredients, including active compounds and pigments.
Synergies
- Broad compatibility with cosmetic ingredients
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded Polyglycerin-3 is safe for use in cosmetic formulations. As of 2023, it is reported in 221 cosmetic products. While related ingredients like Diglycerin have been noted at concentrations up to 28% in specific product types, a definitive maximum concentration for Polyglycerin-3 itself for dermal exposure is not explicitly stated. It is recognized as safe by European Cosmetics Regulation and classified as low concern by the EPA Safer Choice program.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Polyglycerin-3 is a valuable ingredient, providing long-lasting hydration, supporting skin barrier health, and enhancing formulation stability with its excellent safety and compatibility profile.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources