Traditional clumping cat litter is made up of ultra-absorbent bentonite clay, and though bentonite is actually a natural product, it isn't biodegradable and for that reason isn't really classified like a "natural" cat litter.  Just like their other formulation, the flat prime clumping will help lure ammonia odours and microorganisms, and never crumbling https://naturalclumpingcatlitterc08642.blogunok.com/32045056/pet-shop