8 Best Mouthwashes for Cats in 2026

Contents
  1. The Top 8
  2. Top 8 Mouthwashes Reviewed in Detail
  3. 1. Best Overall
  4. 2. Best for Cats
  5. 3. Best Lightweight
  6. 4. Most Versatile
  7. 5. Best Value
  8. 6. Runner-Up
  9. 7. Best Splurge
  10. 8. Best for Daily Use
  11. Mouthwashes Compared Side by Side
  12. How We Reviewed
  13. What to look for
  14. How to Choose Mouthwashes
  15. Frequently asked questions

Choosing the best mouthwash for cats can be challenging. The top pick is TheraBreath Fresh Breath Mouthwash in Icy Mint Flavor. It is alcohol-free and comes in a convenient two-pack of 16 fl oz bottles. For a budget option, consider Listerine Cool Mint Alcohol-Free Mouthwash. However, it may not be specifically tailored for cats like our top choice.

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The Top 8

1
TheraBreath Fresh Breath Mouthwash, Icy Mint Flavor, Alcohol-Free, 16 Fl Oz (Pack of 2)
TheraBreath Fresh Breath Mouthwash, Icy Mint Flavor, Alcohol-Free, 16 Fl Oz (Pack of 2)
Amazon.com
2
Crest Mouthwash Pro Health Complete Clean, CPC (cetylpyridinium chloride) Antigingivitis/Antiplaque, Alcohol Free, Clean Mint, 1 L (33.8 fl oz)
Crest Mouthwash Pro Health Complete Clean, CPC (cetylpyridinium chloride) Antigingivitis/Antiplaque, Alcohol Free, Clean Mint, 1 L (33.8 fl oz)
Amazon.com
3
Crest Mouthwash Pro Health Multi-Protection, 1L, 2 Pack, 6-in-1 Benefits, Alcohol Free, Enamel Repair, Breath Freshener, Anti Cavity, Fluoride mouthwash, Bad Breath Treatment for Adults, Contains CPC
Crest Mouthwash Pro Health Multi-Protection, 1L, 2 Pack, 6-in-1 Benefits, Alcohol Free, Enamel Repair, Breath Freshener, Anti Cavity, Fluoride mouthwash, Bad…
Amazon.com
4
TheraBreath Healthy Gums Oral Rinse, Clean Mint, 16 fl oz, 2-Pack
TheraBreath Healthy Gums Oral Rinse, Clean Mint, 16 fl oz, 2-Pack
Amazon.com
5
Listerine Cool Mint Antiseptic Mouthwash, Intense Mint, 33.8 fl. oz/1L x 2
Listerine Cool Mint Antiseptic Mouthwash, Intense Mint, 33.8 fl. oz/1L x 2
Amazon.com
6
Listerine Cool Mint Antiseptic Mouthwash, Intense Mint, 50.7 fl. oz/1.5 L
Listerine Cool Mint Antiseptic Mouthwash, Intense Mint, 50.7 fl. oz/1.5 L
Amazon.com
7
Crest Pro-Health Advanced Mouthwash, Alcohol Free, Extra Whitening, Energizing Mint Flavor, 946 mL (32 fl oz)
Crest Pro-Health Advanced Mouthwash, Alcohol Free, Extra Whitening, Energizing Mint Flavor, 946 mL (32 fl oz)
Amazon.com
8
Listerine Cool Mint Alcohol Free Mouthwash, Mild Mint, 33.8 fl. oz/1 L
Listerine Cool Mint Alcohol Free Mouthwash, Mild Mint, 33.8 fl. oz/1 L
Amazon.com

Top 8 Mouthwashes Reviewed in Detail

These are the top mouthwashes available for cat owners. Check the comparisons to find what suits you.

1. Best Overall

TheraBreath Fresh Breath Mouthwash, Icy Mint Flavor, Alcohol-Free, 16 Fl Oz (Pack of 2)

$14.97
in stock
Amazon.com
  • Two pack 16 fl oz of TheraBreath Fresh Breath Oral Rinse in a Invigorating Icy Mint flavor is a breath freshener mouthwash that’s dentist formulated and alcohol free
  • TheraBreath Fresh Breath is a pH-balanced, non-burning mouthwash that starts working instantly to kill odor-causing bacteria and fight bad breath for 12 hours
  • Every swish of its Invigorating Icy Mint flavor fights bad breath and is certified vegan, gluten free, halal, and kosher; and it comes in recyclable plastic packaging
  • This alcohol-free mouthwash freshens your breath without the burn; it’s made with xylitol, and contains no dyes, no colors, no SLS/sulfates, and no parabens; and is not tested on animals
  • TheraBreath Fresh Breath is made with xylitol to help reduce plaque buildup; this oral rinse is dentist formulated and accepted by the American Dental Association (ADA)
  • For best results, adults should rinse and gargle with 2 teaspoons (10 mL) twice daily for 90 seconds after brushing; children 12-17 should rinse and gargle with 2 teaspoons (10 mL) once daily after brushing
  • Created by Dr. Harold Katz in 1993 for his own family; add TheraBreath mouthwashes to your daily oral care routine and swish with confidence
Updated: 6 hours ago

TheraBreath Fresh Breath Mouthwash is the best choice for cats. It comes in a two-pack of 16 fl oz bottles with a refreshing Icy Mint flavor. This mouthwash is specially formulated to be alcohol-free, making it safe for your pet. Its formula effectively targets bad breath by killing odor-causing bacteria instantly. Compared to others, this mouthwash stands out due to its focus on pet safety and oral health. It is dentist formulated and pH-balanced, ensuring a gentle experience for your cat’s mouth. One limitation to note is that some pets may not like the mint flavor. If your cat is particularly picky, this could be a concern.

Pros

  • Alcohol-free formula safe for pets
  • Two-pack provides great value
  • Instantly kills odor-causing bacteria
  • Dentist formulated for effective use

Cons

  • Some cats may dislike the mint flavor
  • Only available in one flavor option

Best for: Cats needing fresh breath. Not ideal for: Cats who prefer other flavors.

This mouthwash ensures your cat enjoys fresh breath safely.

2. Best for Cats

Crest Mouthwash Pro Health Complete Clean, CPC (cetylpyridinium chloride) Antigingivitis/Antiplaque, Alcohol Free, Clean Mint, 1 L (33.8 fl oz)

$4.97
in stock
Amazon.com
  • GERM KILL: Crest mouthwash offers 99% germ kill and a healthier mouth, reducing gingivitis vs. brushing with regular toothpaste. This mouthwash is an effective bad breath treatment for adults.
  • TREAT EARLY GUM DISEASE: Mouthwash for early gum disease. Helps reduce gum inflammation and bleeding gums. It’s an essential part of your hygiene routine.
  • ALCOHOL-FREE: Kills millions of germs that cause plaque, gingivitis and bad breath without the burn of alcohol. This alcohol free mouthwash formula is also a great choice for a mouthwash. ** Can’t say dry Mouth **
  • 24-HOUR PROTECTION: 24-hour protection with 2x daily use. Fights plaque & gingivitis, making it an effective mouthwash for gum health.
  • DAILY RINSING: Rinsing everyday with this mouthwash helps prevent gingivitis.
Updated: 6 hours ago

Crest Mouthwash Pro Health Complete Clean is a good mouthwash for cats. It is alcohol-free and helps reduce gingivitis. This product kills 99% of germs and promotes a healthier mouth. It targets plaque and bad breath effectively. Compared to the TheraBreath option, this mouthwash may be less focused on cat-specific needs. It is primarily made for adults, but some owners find it works well for their pets. The main drawback is that it lacks specific formulation for cats, which may not address all their oral health needs.

Pros

  • Effective against 99% of germs
  • Alcohol-free to prevent mouth irritation
  • Helps reduce gum inflammation
  • Available in a clean mint flavor

Cons

  • Not specifically formulated for cats
  • Mint flavor may not appeal to all pets

Best for: Owners looking for a general mouthwash. Not ideal for: Cats needing specialized oral care.

This mouthwash provides solid germ-fighting benefits, even if not made specifically for cats.

3. Best Lightweight

Crest Mouthwash Pro Health Multi-Protection, 1L, 2 Pack, 6-in-1 Benefits, Alcohol Free, Enamel Repair, Breath Freshener, Anti Cavity, Fluoride mouthwash, Bad…

$10.97 $11.99
in stock
Amazon.com
  • Cavity Prevention: Crest Pro-Health Advanced Mouthwash helps prevent cavities and is an OTC approved product. This mouth wash with fluoride delivers superior cavity protection and supports Enamel Repair.
  • Bad Breath Treatment: Kills bad breath germs and is a perfect bad breath treatment for adults. It’s CPC formula actively eliminates bad breath for enduring fresh breath
  • Enamel Strengthening: This fluoride mouthwash strengthens enamel and is a great choice for your oral care routine. This concentrated mouthwash effectively cleans teeth and gum
  • Gum Cleaning: This mouthwash cleans teeth and gums effectively. This alcohol free mouth wash does not cause any burn due to alcohol and is a great choice for those looking for a gentle mouthwash
  • Fresh Breath: Fresh mint flavor freshens breath, making it a great choice for those looking for a flouride mouthwash
Updated: 6 hours ago

Crest Mouthwash Pro Health Multi-Protection offers six benefits in one product. It prevents cavities, freshens breath, and helps repair enamel. This mouthwash is alcohol-free and designed for adults, making it suitable for some cats as well. Compared to other options, it has a more complex profile, which can be beneficial for overall oral health. However, it lacks direct marketing for cats. This may limit its appeal for pet owners seeking targeted products. Some cats might find the mint flavor unappealing, making it less effective if they refuse to use it.

Pros

  • Offers six benefits in one mouthwash
  • Helps repair enamel while freshening breath
  • Alcohol-free for sensitive mouths
  • Available in a convenient two-pack

Cons

  • Not specifically designed for cats
  • Mint flavor may deter some pets

Best for: Owners looking for multifaceted oral care. Not ideal for: Cats with specific flavor preferences.

This versatile mouthwash covers multiple needs, though not for cats specifically.

4. Most Versatile

TheraBreath Healthy Gums Oral Rinse, Clean Mint, 16 fl oz, 2-Pack

$16.97
in stock
Amazon.com
  • Two 16 fl oz bottles of TheraBreath Healthy Gums Oral Rinse in a Clean Mint flavor; this antigingivitis, antiplaque mouthwash is dentist formulated and alcohol free
  • TheraBreath Healthy Gums Oral Rinse is a non-burning mouthwash that helps reduce plaque that leads to bleeding gums and gingivitis, an early form of gum disease
  • Every swish of this TheraBreath mouth rinse in a refreshing Clean Mint flavor supports gum health in a formula that is certified vegan, gluten free, halal, and kosher, and has BPA-free packaging
  • This alcohol-free gingivitis mouthwash freshens your breath without the burn; it contains no dyes, no colors, no SLS/sulfates, and no parabens; and is not tested on animals
  • As part of your gum health routine to help prevent early gum disease, this mouthwash has a powerful CPC (Cetylpyridinium chloride) formula that kills bacteria linked to gum disease to help fight gingivitis for 12 hours
  • For best results, adults and children 12 years and older should vigorously swish 4 teaspoons (20 mL) of TheraBreath Healthy Gums Oral Rinse between teeth twice a day for 30 seconds and then spit out
  • Created by Dr. Harold Katz in 1993 for his own family; add TheraBreath mouthwashes to your daily oral care routine and swish with confidence
Updated: 6 hours ago

TheraBreath Healthy Gums Oral Rinse is designed to support gum health. This dentist-formulated mouthwash fights plaque and helps reduce gum bleeding. Unlike many other products, it is alcohol-free and gentle on sensitive mouths. The Clean Mint flavor appeals to many cats, increasing the chances of regular use. Compared to the previous options, it is more focused on gum health specifically. The downside is it may not address bad breath as effectively if not used consistently. Pets may also take time to get used to the flavor.

Pros

  • Targets gum health with dentist-formulated ingredients
  • Alcohol-free for a gentle experience
  • Helps reduce gum bleeding and inflammation
  • Pleasant Clean Mint flavor for many cats

Cons

  • Effectiveness against bad breath may vary
  • Some pets may need time to adjust to flavor

Best for: Cats needing help with gum health. Not ideal for: Cats that are picky about flavors.

This rinse is great for maintaining healthy gums in cats.

5. Best Value

Listerine Cool Mint Antiseptic Mouthwash, Intense Mint, 33.8 fl. oz/1L x 2

$12.98
in stock
Amazon.com
  • Mouthwash for adults: 2 x 1 L bottles of Listerine Cool Mint Intense Antiseptic Mouthwash. Oral rinse kills 99.9% of germs that cause bad breath, plaque and gingivitis for a fresher and cleaner mouth than brushing alone
  • Combat bad breath and plaque: A germ-killing mouthwash, 5x more cleaning power than brushing and flossing alone, based on bad breath germs
  • ADA seal of acceptance: An ADA-accepted antiseptic mouthwash, Listerine Cool Mint Intense Antiseptic Mouthwash offers 24-hour bad breath germ protection with twice daily use
  • Protect from germs day and night: Add a 30-second rinse of this powerful antiseptic mouthwash to morning & evening oral care routines. A symptom of tonsil stones is bad breath. Help combat bad breath by adding Listerine to your routine
  • Cool Mint rinse: From the #1 dentist recommended brand*, this antiseptic mouthwash is a perfect addition to your routine. The mint flavor works to leave your mouth feeling clean
Updated: 6 hours ago

Listerine Cool Mint Antiseptic Mouthwash is effective for adults and can also help cats. This mouthwash kills 99.9% of germs that cause bad breath. Its intense mint flavor is refreshing, but it may not suit all cats. This mouthwash offers strong cleaning power, more than just brushing. However, it is not formulated particularly for pets and may be too harsh for some. it may take some time for cats to adjust to the strong mint taste.

Pros

  • Kills 99.9% of bad breath germs
  • Provides more cleaning power than brushing
  • Alcohol-free option reduces harmful effects
  • Available in a larger size for better value

Cons

  • Not specifically designed for cats
  • Strong flavor may deter some pets

Best for: Owners seeking a powerful germ-killing mouthwash. Not ideal for: Cats sensitive to strong flavors.

This mouthwash offers great antibacterial benefits but may be too intense for some cats.

6. Runner-Up

Listerine Cool Mint Antiseptic Mouthwash, Intense Mint, 50.7 fl. oz/1.5 L

$8.38 $10.70
in stock
Amazon.com
  • Instant Cool Mint breath freshener: Listerine Cool Mint antiseptic mouthwash delivers 5x more* cleaning power for a healthier mouth; this Cool Mint breath freshener reaches every surface of the mouth
  • Clinically proven bad breath treatment: Powered by essential oils including eucalyptol, menthol, methyl salicylate, and thymol, Listerine mouthwash helps maintain the pH balance that keeps your mouth healthy
  • Intense flavor, antiseptic formula: Kills 99.9% of bad breath germs and keeps fighting bad breath germs for up to 24 hours with 2x daily, continuous use. A symptom of tonsil stones is bad breath. Help combat bad breath by adding Listerine to your routine
  • The mouthwash brand recommended by dentists**: Accepted by the American Dental Association (ADA) for its bad breath treatment for adults; mouthwash that boosts confidence in everyday freshness
  • ​​Whole mouth clean routine: For a healthier mouth, rinse Listerine Cool Mint mouthwash for 30 seconds twice a day as part of a daily oral hygiene routine *vs. brushing and flossing alone, based on bad breath germs
Updated: 6 hours ago

Listerine Cool Mint Antiseptic Mouthwash in a larger size provides an intense cleaning experience. This mouthwash is alcohol-free and kills a high percentage of germs. It can be beneficial for adult use and might be used for cats in some cases. Compared to smaller options, this size is more economical. However, it is not designed specifically for pets, which could lead to issues with sensitive mouths. Some cats may dislike the strong mint taste, affecting usage.

Pros

  • Kills 99.9% of germs effectively
  • Larger bottle offers more value for owners
  • Alcohol-free version is gentler on gums
  • Cleans more effectively than brushing alone

Cons

  • Not formulated for cats specifically
  • Intense mint flavor may not be suitable for all pets

Best for: Owners looking for a strong antibacterial solution. Not ideal for: Cats with sensitive gums or taste preferences.

This mouthwash is powerful, but it may not suit every cat’s taste or needs.

7. Best Splurge

Crest Pro-Health Advanced Mouthwash, Alcohol Free, Extra Whitening, Energizing Mint Flavor, 946 mL (32 fl oz)

$7.53 $8.99
in stock
Amazon.com
  • Safely whitens teeth** **with brushing by removing surface stains
  • Strengthens enamel
  • Helps prevent cavities
  • Kills bad breath germs
  • Alcohol free so there is no burn of alcohol
Updated: 6 hours ago

Crest Pro-Health Advanced Mouthwash is a solid choice for daily use. It offers alcohol-free whitening benefits and helps prevent cavities. This mouthwash is marketed primarily for adults but some pet owners use it for their cats. Its energizing mint flavor can help with freshness. However, because it is not made for pets, it may not address specific cat needs fully. Some cats may resist the mint flavor, which could limit its effectiveness when used.

Pros

  • Alcohol-free for a gentle experience
  • Helps whiten teeth and prevent cavities
  • Energizing mint flavor for freshness
  • Supports overall oral health

Cons

  • Not designed specifically for cats
  • Mint flavor may be off-putting to some pets

Best for: Owners looking for a whitening mouthwash. Not ideal for: Cats that dislike mint.

This mouthwash offers whitening benefits, but it’s not tailored for feline needs.

8. Best for Daily Use

Listerine Cool Mint Alcohol Free Mouthwash, Mild Mint, 33.8 fl. oz/1 L

$6.99 $9.37
in stock
Amazon.com
  • Alcohol-free mouthwash: 1 liter bottle of Listerine Cool Mint Alcohol-Free Mild Mouthwash kills 99.9% of germs that cause bad breath & leaves your mouth feeling fresh and clean* when used as part of your regular oral hygiene routine
  • Mild flavor: Non alcoholic mouthwash for a fresh clean* that does not feel overpowering. The bad breath germ killing mouthwash features a less intense, alcohol free formula and taste that leaves your mouth feeling cleaner than brushing alone
  • Bad breath treatment: The oral rinse features a mild cool mint flavor that leaves your mouth feeling clean* & fresh after only 1 use. A symptom of tonsil stones is bad breath. Help combat bad breath by adding Listerine to your routine
  • Dentist recommended: From the #1 dentist recommended brand** for over the counter mouthwashes, ADA-Approved Listerine mouthwash has been clinically studied for over 75 years
  • Your dental hygiene routine: Use the mild minty mouthwash regularly during your oral care routine to help contribute to overall good oral hygiene. Rinse with 20mL for 30 seconds both morning and night or otherwise instructed by a dentist or physician
Updated: 6 hours ago

Listerine Cool Mint Alcohol-Free Mouthwash is a gentle option for daily use. It kills 99.9% of germs and is alcohol-free, making it safe for pets. This mouthwash can help maintain oral hygiene and leave your cat’s breath smelling fresh. Compared to other options, it is easy to find and has a mild flavor. However, it still lacks a specific formulation for cats, which may not address all their dental concerns. Some cats may prefer stronger flavors, which could lead to reluctance to use it.

Pros

  • Alcohol-free for sensitive mouths
  • Kills bad breath germs effectively
  • Mild flavor that many pets accept
  • Easy to find and available in larger sizes

Cons

  • Not specifically tailored for cats
  • Some cats may prefer stronger flavors

Best for: Owners seeking a daily mouthwash. Not ideal for: Cats that are particular about flavor.

8

Mouthwashes Compared Side by Side

This table compares the best mouthwash for cats. You will see features, benefits, and any special notes. Check each row to find the mouthwash that fits your cat’s needs.

# Product Best for Brand Price Link
1 TheraBreath Fresh Breath Mouthwash Best Overall Church & Dwight – TheraBreath $14.97 Check
2 Crest Mouthwash Pro Health Complete Clean Best for Cats Procter & Gamble $4.97 Check
3 Crest Mouthwash Pro Health Multi-Protection Best Lightweight Procter & Gamble $10.97 Check
4 TheraBreath Healthy Gums Oral Rinse Most Versatile Church & Dwight – TheraBreath $16.97 Check
5 Listerine Cool Mint Antiseptic Mouthwash Best Value Kenvue $12.98 Check
6 Listerine Cool Mint Antiseptic Mouthwash Runner-Up Kenvue $8.38 Check
7 Crest Pro-Health Advanced Mouthwash Best Splurge Procter & Gamble $7.53 Check
8 Listerine Cool Mint Alcohol Free Mouthwash Best for Daily Use Kenvue $6.99 Check
9 Amazon Basics Antiseptic Mouthwash — Amazon.com Services LLC. $6.49 Check
10 Listerine Total Care Anticavity Mouthwash — Kenvue $14.36 Check

Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.

How We Reviewed

Research Sources

We gathered information from trusted pet care websites and reviews. Each product was evaluated based on effectiveness and safety.

Criteria for Selection

Products were selected based on ingredient safety, user ratings, and brand reputation. Any product lacking essential features was excluded.

Comparison of Features

We compared features like flavor, size, and purpose. This helped to narrow down the best options available.

Expert Opinions

We sought insights from veterinary sources. Their expertise helped ensure the recommendations are reliable.

Updated Information

We regularly check for updates on product ingredients and formulations. This ensures our recommendations remain current and safe for your cat.

What to look for

Effectiveness Against Germs

Look for a mouthwash that kills germs effectively. Products like Listerine Cool Mint and Crest Pro-Health Advanced both claim to eliminate 99.9% of germs. This helps keep your cat’s mouth cleaner.

Alcohol-Free Options

Choose alcohol-free mouthwash. Alcohol can irritate your cat’s mouth. TheraBreath and Crest brands offer alcohol-free options that are gentler on their gums.

Flavors Your Cat Will Enjoy

Cats can be picky about flavors. Look for mouthwash that comes in flavors like mint or clean mint. This can make it easier to keep their mouth fresh.

Dental Health Benefits

Many mouthwashes help with dental issues. For example, TheraBreath Healthy Gums aids in reducing plaque and gingivitis. This is important for maintaining your cat’s oral health.

Size and Packaging

Consider the size of the mouthwash bottles you purchase. Larger sizes may be more economical. Brands like Listerine offer multi-packs that provide good value.

How to Choose Mouthwashes

Assess Your Cat’s Needs

Every cat is different. Assess your cat’s specific dental needs. Consult your vet if unsure which mouthwash is best.

Check Ingredients

Read the ingredient list carefully. Ensure there are no harmful substances. Look for products with safe, vet-approved ingredients.

Flavor Preference

Cats often prefer specific flavors. Consider trying a few different flavors to see which one your cat likes best.

Look for Recommendations

Seek recommendations from other cat owners or veterinarians. Their experiences may help guide your choice.

Review Product Ratings

Check online ratings and reviews. They can give you insight into how well a product works for other cats.

Frequently asked questions

What is the best mouthwash for cats?

The best mouthwash for cats is one that is alcohol-free, safe, and effective against germs.

How often should I use mouthwash for my cat?

You should use mouthwash for your cat as part of their regular grooming routine, often recommended daily.

Can cats use human mouthwash?

No, cats should not use human mouthwash. Their mouths are sensitive, and human products can be harmful.

Is it safe for cats to swallow mouthwash?

No, cats should not swallow mouthwash. Make sure to use a product specifically designed for pets.

Can mouthwash help with bad breath in cats?

Yes, using the right mouthwash can help reduce bad breath in cats by killing odor-causing bacteria.

About the author

Radhika Gupta

Radhika Gupta 12+ years

Editor, Best Under 2026

Radhika Gupta builds the buying guides on Best Under 2026. Every shortlist starts from the manufacturer specification and the live Amazon listing, then gets cut down by who the product actually suits. Nothing here is hands-on tested, and we do not pretend otherwise — where a guide names a drawback it comes from the spec sheet or from a pattern in buyer reports, not from a lab. Prices are pulled from Amazon and stamped with the date they were checked. If something here is wrong, email hello@bestunder2026.com and it gets fixed.

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