Zero Mess by World's Best Advanced Cat Litter

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24-lb bag
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Make kitty cleanup quick, easy, and tidy with the Zero Mess by World's Best Advanced Cat Litter. It has a patented blend of naturally super-absorbent whole kernel corn and plant fibers to trap liquids and odors in tight clumps, with no dust or mess. Designed for high-performance use, this multi-cat-strength litter is lightweight, 99% dust-free, 100% natural, and totally flushable for easy cleaning. By forming clumps quickly, it also prevents the litter from sticking to the litter box. Plus, it’s septic-safe, eco-friendly, and free of toxins or silica so it’s safe for the whole family.

Key Benefits
  • Traps liquids and odors in tight clumps with patented blend of super-absorbent whole kernel corn and plant fibers.
  • Uses only clump-forming plant materials with no silica, for a formula that’s 99% dust-free.
  • 100% natural formula uses concentrated granules so you can use less litter and get better performance.
  • Quick clumping action provides powerful odor control while preventing litter from sticking to the litter box.
  • Perfect for heavy duty use and multiple cats, and is flushable for easy cleanup.
Additional Details

Always wash your hands thoroughly after handling used cat litter, as cat feces may contain Toxoplasma gondii—a parasite that can cause toxoplasmosis. Pregnant or nursing women, as well as children and anyone with a weakened immune system, should avoid handling used cat litter. Always handle litter in a ventilated area to avoid inhalation. Keep contents and packaging out of reach of children and pets. Seek medical help in case of accidental ingestion.


Corn and plant fibers.

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  • Item Number
  • Weight
    24.0 pounds
  • Brand

    World's Best

  • Litter & Bedding Type


  • Litter Feature

    Clumping, Unscented, Flushable, Biodegradable, Multi-Cat, Odor Control

  • Start with a clean or new litter box and mix one-third World's Best Cat Litter and two-thirds your current litter.
  • When your cat is comfortable. change the proportion to two-thirds World's Best Cat Litter.
  • Make the switch complete and use only World's Best Cat Litter. Maintain 2-3 inches of clumping cat litter in the box.

Additional Instructions

  • Only dispose of used cat litter in trash. Do not bury or dispose of outdoors, in gutters or storm drains to avoid environmental contamination.
  • Not for internal use. Not meant for use as compost or as a traction aid.
  • Store in a cool, dry place. Product filled by weight; some settling may occur.
Transition Instructions

When you switch litters, your cat may paw or even taste the new litter. This is normal! World's Best Cat Litter™ is made from 100% natural corn and plant fibers, and won't harm your cat or kitten if they sample it.

Start by mixing in 1/3 World’s Best Cat Liter the first week. Then use 2/3 the second week. By the third week, you should be using 100% World’s Best Cat Liter.

Customer Reviews
83 Reviews 83 Reviews 3.6 out of 5 Stars

69% Recommend

69% of reviewersrecommend this product

3.6 / 5

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  • Like it, so far!

    By on

    I just switched over to the Zero Mess from the original World's Best formula five days ago. I immediately noticed that the clumps seemed to be smaller and tighter when I cleaned the box, even with my older cat, who has compromised kidney function and urinates larger amounts. There also seems to be less scatter. Odor is contained as well as with the original formula- perhaps even better. There also seems to be less dust, which is a big plus (even though the original formula states on the bag that it is 99% dust free, as does the Zero Mess). So far, I am pleased with my purchase, even though this formula costs a bit more.

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  • Really dusty!

    By on

    I have been using Word’s best litter for a very long time and it just seems like in the last couple years they have changed the formula and it has become more dusty! I have to swiffer my floors daily due to the layer of litter dust! And this new one is just as bad - not worth the extra money! I really wish there was such a thing as zero dust

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  • Doesn't last as long as claimed

    By on

    Firstly, the claims made on the bag as to how long it lasts are absolutely false. I have one cat and one bag doesn't even last 3 weeks. It does perform slightly better than the regular formula but not enough to justify the price hike. This formulation also requires you to use a lot of litter box deodorizer as it does not control odors at all. Three stars because my cat likes it and it performs better than tidy cat. It is less dusty than typical litters.

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  • Not zero mess

    By on

    The litter does clump slightly better and is a little less dustier than the multi cat formula. The difference is not significant enough to make up for all the tracking. This litter has been tracked all over my house. Have never had that issue with multi cat formula.

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  • This litter is amazing

    By on

    I have cats before but always they did their business outside. My new adopted cat uses a litter box. Well the “clay” clumping litter was awful. Box always smelled and I was cleaning it every time he used it. We are starting toilet training and we have a septic system so conventional clumping was out of the question. This litter is really the answer to everything. It never smells and easy clean up. Haven’t started the toilet training yet!!

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  • Dusty dusty dusty

    By on

    Holy cow. The tracking is low for the kernels themselves but after two to three days I've got dust EVERYWHERE. They track the dust all over. Even to the kitchen. And the urine clumps poorly. I purchased a new scooper to try and agitate the litter less but it isn't helping. My search continues!

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  • I’ve tried many litters, this is perfect

    By on

    I was looking for a low dust and flushable litter. I tried something from Amazon and it was awful - it was so dusty I thought I was going to suffocate while cleaning it up. I keep buying this litter because it’s not easy for the cats to track it all over the house and it’s basically zero dust. SO happy with it, and my mom got it for her cats too, and she loves it.

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  • Still dusty

    By on

    I like this cat litter, but it doesn't seem to be any different than the green or purple bags of the "worlds best cat litter. All the ones I have used of worlds best have worked really good for odor and how long it lasts, don't have to change litter so often. I will keep buying product!

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  • Pretty Darn Clean!

    By on

    Out of all the WBC litter, this one is my favorite. It really clumps easily and does not turn dusty. There is no odor in my home when using this product. I like that it is flushable and safe for my cats and for the environment.

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  • Best cat litter

    By on

    I can't use clay litter since it causes health problems for both me and my cat. I've been using World's Best as an alternative for years but the previous formula was really dusty and I was constantly cleaning up dust tracked around my house (even with litter mats). This new formula has completely resolved the dust issue. I highly recommend it.

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