Certified Homeoprophylaxis Supervision (HP) and Travel HP aim to mildly stimulate the developing immune system toward various infectious illness processes through the use of homeopathic nosodes. In HP, an immune system response is created by the homeopathic nosode and results in the same process of learning for the immune system that a natural disease might, thereby educating the immune system. Because of the homeopathic dilution, the immune system response to an HP nosode will always be mild, short-lived and leave no permanent damage, only learning, resulting in a stronger, healthier immune system. View this wonderful, short video from Free and Healthy Children International to learn more about HP.