Although you may feel some benefit, high doses of isolated nutrients can build up in the tissues of the body. Your body then has to spend vital energy detoxifying from the vitamins! BōKU® Immune Tonic to supports the body in a unique way, it is gentle, yet powerful at the same time. The organic herbs in BōKU® Immune Tonic have a long history of use keeping people healthy and strong around the world. BōKU® Immune Tonic provides a second level of support to synergize your use of nutrient dense foods and positive lifestyle factors.