Ionic Salt Crystals, earth's natural rejuvenating source. Harmonize your body’s energy flow and restore balance to the air in your home by experiencing all the therapeutic benefits of a natural hot spring in your own bathtub, as well as the blissful effects of negative ionization through aromatherapy. "The action of the pounding surf creates negative air ions and we also see it immediately after spring thunderstorms when people report lightened moods," says ion researcher Michael Terman, PhD, of Columbia University in New York. Let the fresh air into your home with the amazing power of negative ions and get happy!