About ARM & HAMMER
ARM & HAMMER traces back to 1846, when Dr. Austin Church and John Dwight began producing and selling sodium bicarbonate under what became, by 1867, the ARM & HAMMER trademark. The brand is now marketed by Church & Dwight, a publicly traded consumer goods company (NYSE: CHD) headquartered in Ewing, New Jersey, and used its core deodorizing ingredient, baking soda, to move into pet care in the early 1990s: the company launched ARM & HAMMER Cat Litter Deodorizer in 1992, then introduced SUPER SCOOP, its first baking-soda clumping litter, in 1997. Today the litter line spans clumping clay, lightweight, and multi-cat formulas built around that same baking-soda odor-neutralizing chemistry, alongside a broader ARM & HAMMER household lineup of laundry, oral care, and deodorant products.
The cat litter line has been independently reviewed by outlets including Cats.com and Catster, both of which single out the Clump & Seal formula for how quickly it forms hard, scoopable clumps and for its low-dust profile. Clump & Seal pairs baking soda with moisture-activated microgranules designed to seal in odor for up to two weeks between full litter changes, and the SLIDE variant adds a non-stick coating aimed at keeping the box itself from collecting residue. As a Church & Dwight brand, ARM & HAMMER also carries the manufacturing scale and quality-control infrastructure of a company that has run its baking-soda supply chain for over a century.
Brand website: armandhammer.com
What ARM & HAMMER makes
ARM & HAMMER's range runs wider than the products we review. The lines we know best from our own testing are marked with a star:
Clump & Seal Platinum
baking-soda clumping clay litter with up to 14 days of odor control, in scented and unscented formulas, one of our top picks — featured on House of Mittens
Clump & Seal SLIDE
non-stick clumping clay formula designed to keep the box itself from collecting residue, one of our top picks — featured on House of Mittens
Sifting Litter Boxes with Microban
three-tray sifting litter box system with antimicrobial-treated plastic, one of our top picks — featured on House of Mittens
Litter Deodorizer
baking-soda powder sprinkled into any litter to boost odor control between changes
Naturals
clumping litter made with natural corn fibers, marketed as twice as absorbent and 50% lighter than clay
Plant Power
plant-based litter made from renewable corn and wheat, roughly 60% lighter than traditional clay
Why we recognized ARM & HAMMER
The House of Mittens Top Brand recognition isn't paid for and can't be applied for. We award it to the brands whose products consistently stand out in our vet-reviewed category guides. ARM & HAMMER earned it on the strength of the products below, evaluated the same way every product on this site is: assessed against feline-health criteria, used with real cats, and judged on merit.
ARM & HAMMER products we rated highly
ARM & HAMMER Clump & Seal SLIDE Platinum Multi-Cat Clumping Cat Litter
The SLIDE non-stick formula keeps clumps and waste from adhering to the bottom and sides of the box, making cleanout dramatically easier and helping the box stay genuinely clean between full changes. It's a very low-dust, hypoallergenic formula that delivers 14 days of odor control through baking soda and sealing technology, and its clumps seal tight and fast to lock in moisture and odor on contact.
Read the 7 Best Cat Litters of 2026 guide →
ARM & HAMMER Clump & Seal Platinum Multi-Cat Clumping Cat Litter, 37 lb
The unscented version of the Platinum line pairs baking soda ammonia neutralization with no added fragrance, a formulation well suited to scent-sensitive and urinary-prone cats. The 37-pound bulk bag offers strong value per pound for high-volume multi-cat households, and it delivers 14 days of odor control through baking-soda chemistry rather than a masking perfume.
Read the 7 Best Cat Litters of 2026 guide →
ARM & HAMMER Large Sifting Litter Box with Microban
The most-reviewed litter box in our roundup, backed by more than fifty thousand ratings. Its three-tray sifting design lets you lift, shake, and pour clean litter through instead of scooping clump by clump, and Microban antimicrobial protection is molded into the plastic to help limit odor-causing bacteria on the tray surface between washes. It's assembly-free, with no power and no proprietary refills.
Read the 11 Best Cat Litter Boxes of 2026 guide →What earned ARM & HAMMER the recognition
- A top pick in our cat litter reviews across two formulas: the SLIDE Platinum for its non-stick, easy-cleanout coating, and the unscented Platinum 37 lb for strong per-pound value in high-volume multi-cat homes.
- Built on baking-soda odor-neutralizing chemistry the brand has developed since introducing its first clumping litter, SUPER SCOOP, in 1997.
- Delivers up to 14 days of odor control per our product testing, backed by moisture-activated microgranules that seal odor at the source rather than masking it with fragrance.
- The ARM & HAMMER Large Sifting Litter Box is the most-reviewed litter box in our litter box roundup, with Microban antimicrobial protection molded into the plastic.
- Independently reviewed by outlets including Cats.com and Catster, and backed by Church & Dwight's century-plus manufacturing scale as a publicly traded (NYSE: CHD) consumer goods company.