This finely-ground Deocrystal Stones Powder is made up of Potassium Alum.
If a soluble aluminium compound, such as aluminium chlorhydrate or aluminium zirconium, is used as an antiperspirant, that compound is readily absorbed through the skin. Once in the body, the aluminium portion of the molecule ionizes, forming free or radical aluminium (Al+++). This passes freely across cell membranes, and forms a physical plug, that when dissolved is selectively absorbed by the liver, kidney, brain, cartilage and bone marrow. It is this concentration of aluminium that has been the source of concern in the medical community and has prompted the research being done on Alzheimer's disease and those suffering from breast cancer.