Radioactive-free, large-pore, volcanic stone (with natural jute). It is used on dry skin before the application of any products to exfoliate and smooth calluses on the bottom of the feet (and the palms of the hands if callused and weathered; otherwise use Scalar Skin Brush™). These two areas have the largest skin pores and so are very important to exfoliate. (Chemo patients are known to blister on the bottom of the feet as well as the palms due to large pore exit point of poisons).
