Ceteareth-12 is a polyethylene glycol ether of cetearyl alcohol used as a nonionic emulsifier and surfactant to blend oil and water phases in creams and lotions. It functions as a formulation aid rather than a therapeutic active.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin irritation | Uncommon | Transient stinging or redness, more likely on compromised skin. |
Allergic contact dermatitis | Rare | Sensitization to ceteareth/PEG ether components reported in patch-test cases. |
Eye irritation | Uncommon | Can occur with direct contact in rinse-off or high-surfactant formulas. |
Enhanced penetration of other ingredients | Rare | As a surfactant it may slightly increase skin permeability, potentially amplifying irritation from co-formulated actives. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.