Zinc sulfate is a water-soluble zinc salt used in topical formulations for its astringent, antimicrobial, and wound-healing properties. It is often included to help control sebum, soothe irritation, and support skin barrier repair.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation or stinging | Common | Mild transient irritation, especially at higher concentrations or on broken skin. |
Dryness | Uncommon | Astringent action can cause localized dryness with frequent use. |
Allergic contact dermatitis | Rare | Sensitization to zinc salts is uncommon but documented in patch-test studies. |
Erythema (redness) | Uncommon | Temporary redness at the application site. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.