Zinc sulfate (zinc sulphate, ZnSO₄) is a zinc salt of sulfuric acid, occurring as colorless, transparent crystals or powder that is highly soluble in water. It is used medicinally as a dietary supplement to treat and prevent zinc deficiency, as well as to treat diarrhea in children and promote wound healing. Zinc sulfate is also used in agriculture to control moss on roofs, in feed and fertilizer production, and in brewing to maintain healthy yeast. Zinc sulfate is a highly effective fertilizer with a wide range of applications in the agricultural sector.