Petco’s Chief Veterinarian, Dr. Whitney Miller recommends: World’s Best Cat Litter Mulitple Cats Flushable Unscented Corn. “It clumps easily, doesn’t track, keeps odor down and is long-lasting,” she ...

However, World's Best Multiple Cat Unscented Litter makes the transition from ... She says grass litters are consistently ...

and is relatively dust-free. Specifics Our top choice for the best cat litters, Tidy Cats Naturally Strong Unscented Litter, is a dye- and fragrance-free clay-based litter. It has a grainy ...