Science
Mechanism of Action
This ingredient functions by significantly reducing the interfacial tension between immiscible liquid phases, such as oils and water. This reduction allows for the creation and stabilization of finely dispersed mixtures (emulsions), preventing phase separation and maintaining product integrity.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
PEG-32, the polymer component, maintains stability and functionality even in hard water. Its optimal performance is within a slightly acidic to neutral pH range of 5.5-7.0 at 25°C. As an ester, it is susceptible to hydrolysis at extreme pH levels. Prolonged exposure to temperatures exceeding 50°C can lead to oxidation and the formation of peroxides.
Conflicts
- Application on damaged or sensitive skin, as PEGs can enhance the penetration of impurities.
- Formulation with ingredients whose safety profile is contingent on minimal dermal absorption, due to the potential for PEGs to increase their penetration.
Safety
Safety Profile
The CIR Expert Panel concluded that PEG diesters, including PEG-32 DIOLEATE, are safe for use when formulated to be non-irritating. However, there is a recognized concern regarding potential impurities such as ethylene oxide and 1,4-dioxane, which are classified as potential carcinogens, in some PEG compounds. Furthermore, PEGs of all molecular weights have the potential to penetrate through damaged skin with impaired barrier function, which could increase exposure to any associated impurities. Therefore, its use should be avoided on sensitive or compromised skin. The FDA has approved PEG-32 for indirect use in the food industry as a lubricant and PEGs generally as food additives.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While effective as an emulsifier, PEG-32 DIOLEATE is a questionable ingredient for precision skincare due to concerns regarding potential impurities and its ability to enhance penetration through compromised skin.
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References
Sources