PEG-30 Dipolyhydroxystearate
What is PEG-30 Dipolyhydroxystearate?
PEG-30 Dipolyhydroxystearate is a non-ionic surfactant derived from dipolyhydroxystearic acid, a polymerized form of hydroxystearic acid sourced from castor oil derivatives, combined with 30 ethylene oxide units for enhanced water solubility. Primarily used in cosmetic emulsions, cleansers, and makeup removers, it excels as a water-in-oil emulsifier and surfactant. By lowering interfacial tension between oil and water phases, it forms a stable interfacial film around droplets, preventing coalescence and ensuring product uniformity in creams, lotions, and anhydrous formulas like lip balms. Its amphiphilic structure—one lipophilic tail from the fatty acid chain and hydrophilic PEG head—facilitates pigment dispersion and oil solubilization, contributing to smooth application and even distribution in color cosmetics and oil cleansers.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Stabilizes oil-in-water and water-in-oil emulsions for consistent product texture.
Promotes a softening feel during application and on skin.
Aids in gentle cleansing by reducing surface tension without stripping.
who_may_benefit section: [
Users of emulsion-based moisturizers and creams for stable hydration.
Individuals seeking makeup removers that effectively dissolve oils.
Those preferring smooth-textured anhydrous products like balms.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| — | People prone to Malassezia-related skin conditions. |
| — | Those avoiding PEG or ethoxylated ingredients. |
| — | Users with sensitivity to synthetic surfactants. |
Safety Notes
- EWG rates it moderate (3) due to possible contamination risks in PEG compounds.
- Regulatory reviews affirm safety in rinse-off and leave-on products at typical levels.
Frequently Asked Questions about PEG-30 Dipolyhydroxystearate
What does PEG-30 Dipolyhydroxystearate do in products?
It emulsifies oil and water phases for stable creams and acts as a surfactant for cleansing and softening.
Is it safe for daily skincare use?
Generally safe per reviews, with moderate EWG score; check for personal sensitivities to PEGs.
Does it feed Malassezia or cause fungal acne?
Listed as a potential Malassezia feeding ingredient, so those prone may want to avoid it.