The difference between pure and processed clays

Many clays that claim to be 100% pure have been cleaned using either a heat process or a hydration process to “wash” out impurities. Both processes can reduce the effectiveness and strength of the clay.  In their attempt to make a purity claim they are actually destroying the natural healing properties. Read labels carefully for any notation of the clay having been cleaned, processed, filtered, recharged or tampered with in any fashion other than milling.

From Perry A~ Arledge (author of Living Clay, Nature's Own Miracle Cure)