Science
Mechanism of Action
This ingredient expertly reduces interfacial tension, which is crucial for forming stable emulsions by allowing immiscible oil and water phases to blend. As a surfactant, it lowers surface tension, aiding in the effective removal of dirt and oils from the skin during cleansing. It functions as a humectant by drawing and retaining moisture, thus supporting skin hydration, and offers emollient properties to soften and smooth the skin's surface. Furthermore, it modulates product viscosity, enhances tactile feel, solubilizes various components including active ingredients and fragrances, and contributes to maintaining a balanced product pH.
Research
Clinical Evidence
High confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
PEG-20 Glyceryl Stearate demonstrates robust stability across a broad pH spectrum (optimal range 5.0-7.5 for a 1% aqueous solution) and is resilient to heat, acids, and bases. Its compatibility with a wide array of cosmetic ingredients and resistance to microbiological degradation can minimize the need for additional preservative systems.
Conflicts
- Potential contamination with 1,4-dioxane and ethylene oxide (due to ethoxylation process)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded in 1983, reaffirmed in 2005, that PEG-20 Glyceryl Stearate is safe for use in cosmetic formulations under current conditions and concentrations, with a re-review considered for August 2024. While generally regarded as safe by regulatory bodies and approved by the FDA for certain food applications, there are noted concerns regarding potential contamination with ethylene oxide and 1,4-dioxane, by-products of the ethoxylation process, which can influence its EWG rating.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-20 Glyceryl Stearate is a valuable, multifunctional ingredient for creating stable and aesthetically pleasing cosmetic formulations suitable for all skin types, provided high-purity sourcing addresses potential contamination risks.
Related
Similar Ingredients
Finding similar ingredients…