Trixie Simple'n'Clean Cat Litter Deodorant Activated Charcoal

Finally, something that isn’t overloaded with perfume—I always worry in such cases that the cats will refuse to use the litter box and start peeing elsewhere. BUT even though the ingredients don’t list any perfume additives at all, it must have some kind of fragrance, because while it’s not a strong smell, it’s definitely there and noticeable for a while. Luckily, by the next day you can’t smell it anymore (and even if the cats notice it, they tolerate it).