Bella Sasso is the most ideal cat litter for cats and kittens. It is formed of Diatomaceous Earth. Diatomaceous Earth is a completely organic, non-toxic, and non-hazardous natural mineral. Diatomaceous Earth (or DE) is created from crushed remains of freshwater animals called Diatoms, giving this litter a high absorption capacity and cation exchange capability. Shop affordable cat supplies products online with the lowest price at DiscountPetCare.