The herbs used in this herbal combination are for the maintenance of a healthy and naturally worm and parasite free bodily system. This combination works by simply maintaining an environment which is not conducive to the environment of the parasite. Parasites and worms are opportunistic and need an unclean environment to occupy. These herbs are designed to simply maintain an atmosphere where it is uncomfortable for them to be. We use black walnut (in very small amounts), sage and clove because the parasites don’t like the taste of them and they are also good to maintain the tone in the healthy tissue, cascara segrada to support naturally occurring movement in the digestive system which gives the parasites a place to evacuate, garlic to support the natural ability of the body’s killer cells, juniper berry for the support it gives to the natural wellness of the urinary system, kelp as a source of the natural bodily minerals, and slippery elm to maintain the natural vitality of the gastrointestinal tract (GI). The bottom line is the parasites cannot reside where the environment is kept in its vibrant naturally healthy state.