In our reference data, PEG-20 Glyceryl Triisostearate can feed Malassezia (fungal acne).
PEG-20 Glyceryl Triisostearate is a polyethylene glycol-modified glyceryl ester used in cosmetic formulations as a nonionic emulsifier and emollient to stabilize oil-in-water systems and improve skin feel. It functions as a formulation aid rather than as a therapeutic active.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation | Rare | Occasional transient redness or stinging, typically in sensitive or compromised skin. |
| Contact dermatitis / allergic sensitization | Rare | PEG-based emulsifiers can rarely provoke allergic contact reactions in predisposed individuals. |
| Eye irritation | Uncommon | May cause irritation on direct ocular contact, relevant in rinse-off and cleansing products. |
| Concern over PEG impurities | Very rare | Trace residual 1,4-dioxane or ethylene oxide from ethoxylation is a theoretical concern mitigated by purification in cosmetic-grade material. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.