Is this litter safe for cats?

Yes, it’s made from sodium bentonite clay, which is safe when used as directed.

How can I prevent tracking with this clay litter?

Place a litter mat outside the box, keep litter depth consistent, and groom long-haired cats regularly to reduce granules sticking to paws.

Extra Strength Multi-Cat Clumping Clay Litter

259 reviews

Extra Strength Multi-Cat Clumping Clay Litter

$ 23.99

Disclosure: As an Amazon Associate and participant in select retailer affiliate programs, we earn from qualifying purchases.

Boxie® Extra Strength stops odors before they start using a proprietary blend of probiotics — our game-changing technology offers a 100% natural solution for those who need extra odor control.

An ideal litter for multiple cats or cats on a high protein diet due to targeted blend of probiotics and proprietary odor-trapping Hard Flat Top™ clumping process.

We recommend introducing clumping clay litter to kittens after 12 weeks of age. In the meantime, try our plant-based or crystal formulas.

It's simple — bacteria is the primary cause of litter box odors. Boxie Extra Strength is the first cat litter to eliminate odors caused by bacteria at the source, using a proprietary blend of probiotics to clean litter on a microscopic level 24/7.

Our Hard Flat Top™ clumping process traps odors and provides a superior clumping experience, ensuring litter stays cleaner and dryer compared to other litters. Plus, it provides a more enjoyable cleaning experience for pawrents.

Lasts 2x longer than other litters
Ranked best odor control in veterinary professional study
Probiotic solutions work 24/7 to clean litter after every use

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Customer Reviews

4.8

★ ★ ★ ★ ★

Based on 259 reviews

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Gary F.

Verified buyer

★ ★ ★ ★ ★

Great product, but beware of Customer "Service"

Love this product; always have, always will.
But beware of the customer service "department" -- takes forever to get a response or help.
Better off finding it at your local pet store and buying it there.

05/12/26

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Lana M.

Verified buyer

★ ★ ★ ★ ★

SURPRISINGLY DURABLE!

! had this bag for a long time and used it between 3 cats and 4 litter boxes. I'm surprised it lasted so long. very little stink and mess. definitely buying again.

01/22/26

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Karen R.

Verified buyer

★ ★ ★ ★ ★

My cat loves this and smells so fresh.

My cat liked this and right away used it. It has no dust and makes less mess. The house smells really fresh like I don’t even own a cat.

01/12/26

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Cindy F.

Verified buyer

★ ★ ★ ★ ★

The Very Best

The very best. Love it's long lasting and barely any dust.

12/20/25

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Cindy F.

Verified buyer

★ ★ ★ ★ ★

The Best!

It's the best and wonder where you've been all my cat's lives lol

11/14/25

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It provides strong odor control for up to two weeks in multi-cat households when scooped daily, with the best performance in the first week. For extended freshness, replace or top up regularly.
Yes, it’s made from sodium bentonite clay, which is safe when used as directed.
Place a litter mat outside the box, keep litter depth consistent, and groom long-haired cats regularly to reduce granules sticking to paws.