Used as a dietary supplement to treat zinc deficiency and support immune function. Commonly included in lozenges to reduce the duration and severity of the common cold. Employed in the synthesis of other zinc compounds and as a catalyst in organic reactions. Utilized in textile processing for mordanting dyes and improving color fastness. Applied in the production of wood preservatives and in the manufacturing of certain types of plastics to act as a stabilizer. Also used in some topical treatments for acne and skin conditions due to its anti-inflammatory and antimicrobial properties.