Pure Nature Pets Kitty Litter Aid Deodorizer, 5-Pound Kitty litter aid is an odor eliminating additive for litters; "put nature to work" not with just the power to absorb odors, but to adsorb them as well Cat litter additive for a more powerful odor capturing ability than litter alone, especially with ammonia caused by urine 100% natural Clinoptilolite zeolite Organic & all-natural; processed and produced in the USA