Pets · Head-to-head
NonScents Cat Litter Deodorizer vs Arm & Hammer Pure Baking Soda, 13.5 lb Resealable Bag
Which should you buy? Our verdict on both, pulled from our full The Best Cat Litter Deodorizers: 4 Compared (and One to Skip) comparison.
NonScents wins because it is fragrance free, the active is a mineral with a real odor-control track record, and it comes as a shaker-style granule. Plain baking soda gets you most of the way there for a fraction of the cost, which is why it is the runner-up rather than an also-ran.
NonScents Cat Litter Deodorizer
Buy itA fragrance-free zeolite granule you shake over the litter, and one of the few additives in this category with peer-reviewed chemistry behind it.
- The maker says it is free from chemical fragrance, which is the single thing feline behavior guidance asks for in a litter box.
- The active is natural zeolite, and odor control is the second largest domestic use of natural zeolite by tonnage in the US Geological Survey's 2026 figures.
- Shaker-style dosing: you scoop first, then sprinkle a thin layer over the litter.
- The maker's own technology page describes an active chlorine coating on the mineral, which the front of the jar does not spell out.
- The published work on chlorine-modified zeolite in cat litter was funded by Oxiscience LLC, the company behind NonScents.
- No full ingredient list on the jar, so you are trusting the description rather than reading a panel.
Arm & Hammer Pure Baking Soda, 13.5 lb Resealable Bag
Buy itPlain sodium bicarbonate in a resealable bag, which is the same deodorizing active the brand discloses in its cat-specific powder, without the fragrance.
- No fragrance at all, so nothing goes into the box that a cat can take against.
- Church & Dwight's own ingredient disclosure names sodium bicarbonate as the deodorizer in its cat litter powder, and here you buy that ingredient by itself.
- By far the cheapest way to test whether an additive changes anything in your house before spending more.
- Arm & Hammer does not market this bag for litter boxes and gives no dosing guidance for that use.
- Bicarbonate is better suited to acidic odors than to ammonia, so it will not flatten every litter box smell.
- Fine powder, so it can raise dust when a cat digs, and some cats dislike that.
Side by side
The 7 criteria below are the ones our full comparison judged every product on, narrowed to these two.
| NonScents Cat Litter Deodorizer Our pick | Arm & Hammer Pure Baking Soda, 13.5 lb Resealable Bag | |
|---|---|---|
| Our verdict | Buy | Buy |
| Best for | Someone who already scoops daily, runs a covered or high-traffic box, and wants a fragrance-free additive rather than a perfume. | Anyone who wants to try a litter additive cheaply and does not mind measuring it out by hand. |
| Price tier | $$ · mid-range | $ · budget |
| Active ingredient | Natural zeolite with an active chlorine coating, per the maker | Sodium bicarbonate |
| Fragrance | Free from chemical fragrance, per the maker | None |
| Form | Shaker jar of granules | Loose powder in a resealable bag |
| Size verified | Jar; an 8 lb bag is also sold | 13.5 lb / 6.12 kg bag |
| How you apply it | Sprinkle a thin layer over the litter | Scoop or pour over the litter; no dosing guidance given |
| Sold for litter box use | Yes | No, sold as general purpose baking soda |
| Ingredient transparency | Partial; described on the site, not on the jar | Single ingredient |
Which one is right for you?
Pick the NonScents Cat Litter Deodorizer if
someone who already scoops daily, runs a covered or high-traffic box, and wants a fragrance-free additive rather than a perfume.
Know before buying: the maker's own technology page describes an active chlorine coating on the mineral, which the front of the jar does not spell out.
Pick the Arm & Hammer Pure Baking Soda, 13.5 lb Resealable Bag if
anyone who wants to try a litter additive cheaply and does not mind measuring it out by hand.
Know before buying: arm & Hammer does not market this bag for litter boxes and gives no dosing guidance for that use.
The bottom line
Our overall pick is the NonScents Cat Litter Deodorizer - A fragrance-free zeolite granule you shake over the litter, and one of the few additives in this category with peer-reviewed chemistry behind it. Choose the Arm & Hammer Pure Baking Soda, 13.5 lb Resealable Bag instead if anyone who wants to try a litter additive cheaply and does not mind measuring it out by hand.
Want the full picture, including the other options we compared and the popular one we'd skip? Read the complete The Best Cat Litter Deodorizers: 4 Compared (and One to Skip).