Side-by-side comparison based on expert reviews and community consensus.
Arm & Hammer Clump & Seal Platinum
Best Odor ControlDr. Elsey's Ultra Unscented Clumping Clay Litter
Best OverallPrice
$18-$27
$16-$24
Summary
Baking soda-powered odor elimination keeps multi-cat homes smell-free for days, even when scooping is skipped. Tens of thousands of five-star Amazon reviews and constant Reddit recommendations back up its tight-clumping reputation.
Medium-sized bentonite clay granules form rock-hard clumps that make scooping a 20-second chore. Vet-recommended unscented formula controls odor without fragrance, and works flawlessly in automatic litter boxes.
Pros
- Baking soda formula neutralizes odors even when left unscooped for several days
- Forms tight, easy-to-remove clumps ideal for automatic litter boxes
- Tens of thousands of five-star Amazon reviews and widely recommended on Reddit
- Available in an 18-lb box at a reasonable price point
- Medium-sized bentonite clay granules form hard, easy-to-scoop clumps
- Unscented formula preferred by vets and safe for sensitive cats
- Works reliably with automatic litter boxes like the Litter-Robot
- 40-lb bag lasts up to two months with one cat at ~52¢/lb
Cons
- Scented formula — a dealbreaker for cats sensitive to fragrance
- Some tracking reported by users
- Slightly more expensive per pound (~$1.05) than Dr. Elsey's
- 40-lb bag is very heavy and awkward to pour
- Initial pour can kick up dust before it settles
- Some Reddit users report quality has declined in recent years
Our take
If odor is your #1 concern — especially with cats in a living space — Clump & Seal Platinum is the one. The baking soda formula genuinely neutralizes ammonia smell in a way plain clay can't match.
Dr. Elsey's is the litter cat owners and experts keep coming back to — it clumps harder than anything else at this price, and the unscented formula means you're not masking smells with perfume that irritates cats.
Buy
