Medi-Dental Pack is a highly effective, cleansing dental pack with premium montmorillonite clay that naturally contains adsorptive calcium smectites, silica and nine mineral oxides. In addition, it also contains rare, calcium-based zeolite minerals (laumontite). High quality clays and minerals have been used for centuries in many cultures for cleansing. In the past, certain sources were highly prized for their amazingly diverse cleansing effects. Smectite clays initially form through volcanic activity. They have a crystalline structure that is unique to each clay. These crystalline molecules act as transducers of light frequencies to encourage the rejuvenative process. Smectite clays have a unique, natural sorptive power, meaning they are able to cleanse. Once the clay mixture has been used for cleansing of the oral cavity, its unique sorptive power has been exhausted so it is best not to re-use the clay. Please enjoy the powerful, rejuvenating effects of this excellent pack.