Bentonite Clay. This is Ultra Clean, Safe for daily, free from contaminants, additives, and impurities that may compromise the Clay's efficacy. A Premium-Grade Bentonite Clay, carefully mined and processed to preserve its natural integrity. Bentonite Clay is natural sedimentary clay (Montmorillonite) created from ancient deposits of volcanic ash. It is Calcium Bentonite and has a Ph of 8.5. Trading Standards do not classify any clays as food grade anymore. Bentonite Clay can also be used externally as a clay poultice, mud pack or in the bath and as a face mask and for general skincare recipes. Many Cleansing products have come and gone over the years, while Bentonite Clay is still here, getting results consistently. Trusted for centuries, the first recorded use of medicinal clay is on Mesopotamian clay tablets around 2500 B.C. Quality Bentonite Clay contains spectrum of 57 bioavailable ionic minerals. Indigenous peoples around the world still use clay widely.