Immune System an Original Formula by Dr. Christopher.
Astragalus root, Siberian ginseng root, Echinacea purpurea (herb and root) and Reishi Mushroom. These herbs have been used for thousands of years as tonics for preventative health care. Using this tonic formula on a daily basis helps strengthen the immune system and guard against invaders. Tonics work best in small amounts over long period of time. Echinacea in this formula also acts as a tonic which negates its week-on/week-off standard usage. Very effective when taken at the first signs of sickness to stop it in its tracks.
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