Zinc sulphate is an orally active inhibitor of tyrosinase and glutathione reductase. Zinc sulphate enhances the activity of dopachrome tautomerase. Zinc sulphate delays anagen-related eumelanin production, induces hair hypopigmentation in mice, and accelerates wound healing. Zinc sulphate can be used in research related to benign gastric ulcers. Zinc sulphate can be used in research related to rheumatoid arthritis[1][2][3].