Review on Ultimate Odor Control: Prestige Pet Magic Cat Litter Deodorizer by Trisha Green

Useful to eliminate odors BUT do not use the recommended 1/2 bag in the litter as this is too much as your cat's paws will turn grey, including a raised one Risks of chasing black pieces around the house that you accidentally accidentally step on and push the black charcoal into the ground and smear it all over the house. I use maybe about 1/3 or less and mix it really well with filler and also add some to my Litter Genie. I sweep the toilet floor several times a day to keep dirt from rolling away, even though I have a toilet mat that works well. Just 1 stick of charcoal is enough to shred and smudge, and you've got an extra clean hand.