Sodium isethionate is a mild anionic surfactant widely used in syndet cleansing bars and facial cleansers to produce lather and remove dirt and oil. It is valued for being relatively gentle and for performing well in hard water without forming soap scum.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin dryness or tightness | Uncommon | Possible with frequent use or in those with already dry skin, due to its cleansing action. |
| Skin or eye irritation | Rare | Mild stinging or redness, generally less than with traditional soaps; transient on rinse-off. |
| Allergic contact dermatitis | Very rare | Sensitization is infrequently reported in the literature. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.