PEGs (polyethylene glycols) are a group of polyether compounds used in skincare primarily as emulsifiers, thickeners, solvents, and humectants to stabilize formulations and improve texture. They function as base/formulation ingredients rather than therapeutic actives.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation | Uncommon | Mild stinging or redness, more likely on compromised or damaged skin barriers. |
Contact dermatitis (allergic sensitization) | Rare | Documented in patch-test studies, particularly with higher-molecular-weight PEGs or in burn/wound patients. |
Enhanced penetration of other ingredients | Uncommon | PEGs can increase skin permeability, potentially allowing deeper penetration of co-formulated substances. |
Systemic absorption concerns from impurities | Very rare | Possible trace contamination with ethylene oxide or 1,4-dioxane from manufacturing; mitigated by purification standards. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.