Sodium sulfate is an inorganic salt used in cosmetic formulations primarily as a thickening, bulking, and viscosity-controlling agent. It is not a skin-active ingredient and has no significant therapeutic effect on skin conditions.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation | Rare | Possible with high concentrations or prolonged contact, especially on sensitive or compromised skin. |
| Dryness | Rare | As a salt, it may contribute to a mild drying effect in some formulations. |
| Eye irritation | Uncommon | Can occur if products containing it contact the eyes. |
| Allergic contact dermatitis | Very rare | Rarely reported; sodium sulfate is generally considered low-sensitizing. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.