Arm & Hammer 2-in-1 Deodorizing & Dander Reducing Shampoo for Cats, Baking Soda Cat Shampoo for Dander, Odor Control and Coat Cleaning, Lavender Chamomile Scent, 20 Fl Oz Review
By Marcus Bell · Dog nutrition editor · Published 2026-05-19 · Updated 2026-06-30
4.6(3,500)Amazon rating$6.232,000+ bought last month
Our verdict
This baking soda based 2-in-1 formula pairs a huge review base with strong recent buying volume, making it one of the more proven everyday cat shampoos in this lineup.
Owners who want a dependable, widely reviewed shampoo for routine deodorizing and dander control at a low price point.
Skip if
You want a fully unscented product, since this one carries a lavender chamomile scent that some cats or owners may not prefer.
Form Liquid
Benefits Cleansing
Weight 1.45 Pounds
Priced 63% below the category median ($16.99 across 38 tracked models)
Our scorecard
4.6/5overall
Owner rating4.6/5
4.6 average across 3,500 owner ratings
Popularity4.3/5
3,500 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog and cat food, health, gear and grooming we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
["Arm & Hammer 2-in-1 Deodorizing & Dander Reducing Shampoo is a 20 fl oz liquid formula priced at $6.23, built around the brand's baking soda technology for odor control alongside coat cleaning. It comes in a lavender chamomile scent and is formulated sulfate free and paraben free.", 'This is one of the better selling entries in the category, with 3,500 reviews, a 4.6 star average, and roughly 2,000 units bought in the past month. That combination of high review volume and strong recent purchases points to a formula a lot of cat owners keep coming back to.', 'The glycerin in the formula is a common conditioning ingredient, and the 20 oz bottle size offers more shampoo per purchase than several other options in this set, which helps with cost per use for owners bathing cats regularly.']
Pros
4.6 star average across 3,500 reviews, the largest review base in this set
Roughly 2,000 units bought in the past month
Sulfate free and paraben free formula
Large 20 fl oz bottle for the price
Low $6.23 price point
Cons
Lavender chamomile scent may not suit owners wanting an unscented option
Liquid formula requires a full water rinse, unlike wipe-based alternatives
Baking soda formulas can be drying for some coat types with frequent use
Specifications
Form
Liquid
Benefits
Cleansing
Weight
1.45 Pounds
Performance notes
Built as a 2-in-1 deodorizing and dander reducing liquid shampoo with baking soda and glycerin, this formula is positioned for routine coat cleaning and odor control rather than a specialty medicated wash.
What buyers say
A 4.6 star average across 3,500 reviews combined with about 2,000 units bought last month makes this one of the most consistently purchased and well rated cat shampoos in the lineup.
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