Trace® minerals liquid ionic zinc 50 mg: immunity, digestion, growth & development ionic zinc is a rich, concentrated liquid dietary supplement that provides 50 mg of zinc sulfate per serving in an ionic form—the form most widely recognized by the body. The balanced liquid form allows for variable dousing. Liquid zinc certified vegan, gluten free 2 fl oz, 48 servings immunity, digestion, growth & development. Trace minerals liquid ionic zinc 50mg vegan - 2 oz. (48 servings)