This synergistic herbal blend was designed to help strengthen and assist the immune system of children. This formula is powerful enough to be effective, yet gentle enough to be safe. It tastes great and has been used traditionally during times of cold and flu. Kid-E-Reg consists of the following: Yarrow, Elder flowers, Peppermint, and Echinacea Angustifolia root, in a base of 100% pure vegetable glycerine with no added flavoring.