World's Best Scoopable Multiple Cat Clumping Litter forms tight clumps on contact and its powerful, concentrated formula contains an all - natural plant derivative which traps odors. (kittycatter.com)
Brewer's yeast may be grown on the same plant derivatives as nutritional yeast, but sometimes it's also grown on barley or malt to mimic the brewery process. (articles.mercola.com)
With an added all - natural plant derivative for enhanced odor control, this scoopable clumping cat litter is ideal for homes with two or more cats. (petflow.com)