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Last updated on October 16, 2026
The best Arm and Hammer cat litter depends on what bugs you most about your current box. Arm and Hammer sells a lot of formulas that look almost the same on the shelf, but they solve different problems.
Below are five that cover the main choices: odor, stuck litter, dust, no added scent, and a lighter box to carry. Each one comes with what owners like, what they don’t, and who should pick it.
For most homes, Clump and Seal Platinum is the best Arm and Hammer cat litter to start with. Choose Slide if litter sticks to your box, or Ultra Last Unscented if you don’t want added fragrance.
Quick Picks
Best for odor control: Arm & Hammer Clump & Seal Platinum
Best for less scraping: Arm & Hammer Slide Platinum
Best for a light scent: Arm & Hammer Cloud Control Platinum
Best unscented clay: Arm & Hammer Ultra Last Unscented
Best plant-based: Arm & Hammer Plant Power Unscented
| Formula | Material | Scent | Best For |
|---|---|---|---|
| Clump and Seal Platinum | Clumping clay | Scented | Odor control |
| Slide Platinum | Clumping clay | Scented | Less scraping |
| Cloud Control Platinum | Clumping clay | Light scent | Avoiding heavy fragrance |
| Ultra Last Unscented | Clumping clay | Unscented | No added fragrance |
| Plant Power Unscented | Corn and wheat | Fragrance free | A lighter box |
What Actually Separates Arm and Hammer Litters
Don’t shop by the dust claim. Arm and Hammer markets Clump and Seal Platinum, Slide and Cloud Control as 99.9% dust free, so that number won’t tell them apart.
The real differences are scent, cleanup and weight. Most of the clay formulas are scented, and strong fragrance is the complaint that comes up most in owner reviews. Plant Power swaps clay for grain, which Arm and Hammer says makes it nearly 60% lighter than its regular clay litter.
Arm & Hammer Clump & Seal Platinum
Why It Stands Out
Arm and Hammer says its online-only Platinum formulas have 10% more odor eliminators than its base formulas. Most reviewers say it holds odor well, including homes with two or three cats. Most also describe the clumps as rock hard, so less crumbles back into the box.
Owners report using it in automatic boxes too. Our Clump and Seal review compares it with the regular formula.
Possible Downsides
Arm and Hammer describes Clump and Seal as having a fresh scent, and reviewers also describe Platinum as scented. One called the smell too strong on its own. The 37 lb box is also heavy to carry and pour.
Best For
Homes where odor is the main problem, especially with more than one cat.
Arm & Hammer Slide Platinum
Why It Stands Out
Slide adds a non-stick formula, so clumps and old litter lift off the box floor instead of cementing to it. Reviewers who specifically discuss the non-stick feature say it works.
Arm and Hammer says it suits traditional and robotic boxes, and owners report it working in automatic boxes. The 18 lb box is easier to handle than the 37 lb Clump and Seal. Our Arm and Hammer Slide review covers how to get the best non-stick results.
Possible Downsides
It’s scented, so it won’t suit homes that want no added fragrance.
Best For
Owners who are tired of scraping stuck clumps off the bottom of the box.
Arm & Hammer Cloud Control Platinum
Why It Stands Out
Arm and Hammer markets it with a light scent that skips heavy perfumes. It’s a middle ground between fully scented and unscented litter. Most reviewers say they see almost no dust when pouring or scooping, and most report strong clumping.
One owner uses it in a Litter-Robot 4.
Possible Downsides
It’s lightly scented, not unscented. One reviewer loved the low dust but felt the odor control could be stronger.
Best For
Owners who want some freshness without a heavy perfume smell.
Arm & Hammer Ultra Last Unscented
Why It Stands Out
It’s Arm and Hammer clumping clay with baking soda and no added scent. Most reviewers report good odor control and low dust, and most say it clumps well. One owner says the low dust helps keep their Litter-Robot cleaner.
Possible Downsides
Unlike Slide, Ultra Last isn’t marketed with Arm and Hammer’s EZ Clean non-stick technology. It’s also clay, so it’s heavier than the plant-based pick below.
Best For
Homes that want no added fragrance in a classic clay litter.
Arm & Hammer Plant Power Unscented
Why It Stands Out
Plant Power is made from corn and wheat, with a fragrance-free formula. Arm and Hammer says it’s nearly 60% lighter than its regular clay litter. Several reviewers report strong odor control, including a home with five cats and four boxes.
Owners also report using it in automatic boxes. One reviewer who switched from Arm and Hammer HardBall said Plant Power formed tighter clumps.
Possible Downsides
Plant Power feels and handles differently from traditional clay because it’s made from corn and wheat. Beyond that material difference, owners don’t point to a recurring complaint.
Best For
Owners who want a lighter box to carry and no added fragrance.
Two Things That Matter More Than the Formula
Depth comes first. Arm and Hammer’s directions say to maintain at least 3 to 4 inches of litter in the box, so follow that instruction for these formulas.
Tracking comes second. With the clay formulas, some litter can still scatter or track outside the box. A litter mat outside the box helps, and our litter tracking solutions guide covers other fixes.
Frequently Asked Questions
Which Arm and Hammer litters have no added scent?
Ultra Last Unscented and Plant Power Unscented. Super Scoop Fragrance Free is another clay option. Cloud Control has a light scent, so it isn’t unscented.
Does Arm and Hammer litter work in automatic litter boxes?
Arm and Hammer says Slide works in robotic boxes. Owners also report Clump and Seal Platinum, Cloud Control and Plant Power working in them. Always check your machine’s manual first. Our guide to the best cat litter for automatic litter boxes covers more options.
Which Arm and Hammer litter is best for kittens?
AAHA suggests starting kittens with unscented clumping litter, the litter they used before, or both. Ultra Last Unscented and Plant Power Unscented are the unscented clumping picks here.
What’s the lightest Arm and Hammer litter?
Plant Power and HardBall are both grain litters, and Arm and Hammer says each is nearly 60% lighter than its regular clay. HardBall is scented, so pick Plant Power if you want no added fragrance. Our best lightweight cat litter guide compares other brands.
How often should you change Arm and Hammer litter completely?
Follow the bag. Arm and Hammer’s directions say to scoop daily, top up to keep the fill depth, and empty the whole box as needed.
