Zinc citrate

Zinc citrate (CAS 546-46-3) is the zinc salt of citric acid, supplying bioavailable zinc across pharmaceutical, nutritional, and personal care applications. It functions as both a mineral source and a mild antimicrobial agent. This makes it a practical dual-function ingredient for formulators working across multiple categories. In oral care products such as toothpastes and mouthwashes, it controls tartar formation and reduces oral bacteria.

It is one of the most established actives in this segment. Dietary supplements and functional foods use it as a zinc source with favorable absorption characteristics compared to inorganic zinc salts. In pharmaceutical tablet and capsule formulations, it serves as a mineral supplement active where controlled zinc delivery is required. Personal care and cosmetic formulators incorporate it into deodorants.

It is also used in skin preparations for its antimicrobial and astringent properties. The product is supplied as a white to off-white powder, typically in anhydrous or trihydrate form for various uses. The trihydrate is the more common commercial grade. Standard grades include food-grade and USP/BP-compliant specifications to meet pharmaceutical and nutraceutical requirements for global markets.

Technical-grade material is available for industrial applications including polymer stabilization and chelation uses. This versatile compound ensures high purity and performance across diverse manufacturing sectors.