Immunace is the brand name of a multi-vitamin cum mineral supplement of little clinical utility. Many ingredients are in sub-therapeutic doses that would do no good to anyone. For example, it contains just 7 mg of iron while the normal daily dose is 35 mg. A young person of your age on normal diet needs no vitamins or minerals. Unnecessary consumption can have adverse consequences. Furthermore, the brand is extremely expensive compared to similar equivalent brands of other companies.