Ion-Zinc A rich source of concentrated zinc sulfate, Ion-Zinc is made from Utah’s Great Salt Lake inland seawater, which contains, in the form of a balanced concentration of electrolytes, more than 72 bioavailable ionic trace elements. Zinc helps to metabolize carbohydrates, proteins and fats; it also contributes to the formation of connective tissue, to the maintenance of healthy skin, and to the maintenance of immune functions.