How To Use Mouthwash To Naturally Repel Mice (And Why!)

Mouthwash bottle used to deter mice

If you’ve come across this article, you might be considering natural methods to keep unwanted pests like mice at bay. One surprising solution you might come across is using mouthwash, particularly the ones with a peppermint flavor! In this article, we’ll dive into the science behind this peculiar remedy and explain how it might work.

You probably know mouthwash as a staple in your daily dental hygiene routine. But did you also know that some types might be effective in repelling mice? It turns out that mice particularly dislike the scent of peppermint, which can be found in some mouthwashes. This aversion makes peppermint mouthwash an intriguing option for deterring rodents.

So, how do you use mouthwash to keep mice away? Simply soak cotton balls in peppermint mouthwash and strategically place them in areas where you suspect mouse activity! As a result, the strong scent will act as a deterrent, making your home a less appealing habitat for those pesky rodents.

Key Takeaways:


  • Natural method
  • Easily accessible
  • Pleasant scent


  • May not be as effective as professional treatments
  • requires frequent replacement
  • might not work for all mouse species

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Mice and Their Sense of Smell

Closeup of a young mouse using its excellent sense of smell to find food and pheromone trails

Mice and Smell

If you didn’t know, mice have a very keen sense of smell and are attracted to various scents. However, you might not know that their sense of smell is much stronger compared to humans! Rutgers University tells us that mice have about 1,000 different odor receptors, while humans have around 400.

Remarkably, certain smells simply don’t appeal to these rodents, and mouthwash is one of them.

If you’d like to know why mice specifically hate mouthwash it’s because mice hate peppermint oil, so the scent of minty mouthwash will work just as good as plain ol’ peppermint oil!

Role of Smell in Mice Behavior

Mice rely on their strong sense of smell not only for food but also for shelter, potential mates, and avoiding predators. So, when determining effective natural ways to repel mice, targeting their sense of smell is a great strategy.

Peppermint mouthwash can act as a potent mice deterrent. Its efficacy in repelling mice is due to their disgust for the smell of peppermint. And the best part is that it’s an inexpensive, daily solution!

To efficiently use mouthwash to keep mice at bay, consider the following:

  1. Get a peppermint mouthwash from Amazon or your local store. The stronger the scent, the more effective it is at repelling mice. Colgate’s Total Mouthwash is an excellent choice with a strong peppermint scent!
  2. Mix equal parts mouthwash and water in a spray bottle.
  3. Spray the solution generously around areas where mice frequent or at possible entry points.

Remember, always keep some peppermint mouthwash handy; you never know when those little furballs might decide to crash your home party.

Why Mouthwash is a Good Mice Deterrent

Mouthwash, a common household item, can actually be a fantastic natural mice deterrent. It’s not only helpful for keeping your teeth squeaky clean but also surprisingly effective at getting those pesky critters to run for the hills. So, why does this dental product play mouse-bane effectively?

Active Ingredients in Mouthwash

Mouthwash contains a few key ingredients that particularly those little squeakers can’t stand the smell of. Menthol, which is found in a lot of mouthwashes, is particularly helpful in this case. You see, like other natural repellents such as lavender and peppermint, menthol produces an aroma that’s extremely unpleasant for mice, encouraging them to flee the scene. Bonus points for minty freshness!

Now, the effectiveness of using mouthwash to deter mice is further supported by the fact that natural repellents such as lavender oftentimes already gives a leg up in keeping their homes rodent-free. It’s a “mint to be” match!

To put mouthwash to good use in the battle against the rodents, you’ll want to follow these simple steps to make your own peppermint-scented mouse repellent (full article on how to do so!)

  1. Choose a mouthwash with a strong peppermint scent, as these are best when it comes to sending the mice packing!
  2. Soak cotton balls or rags in the mouthwash.
  3. Place the soaked items in areas where you’ve seen or suspect mice activity.

What’s great about this method is that not only does it repel mice, but it also leaves your home smelling fresh and clean! Just remember to replace the cotton balls or rags every few days to maintain the deterring effect.

How To Use Mouthwash To Repel Mice

A handful of cotton balls that can be soaked in mouthwash to deter mice

Here’s how to use mouth wash to keep mice at bay:

  1. Create a Mouthwash Spray: Mix equal parts peppermint mouthwash and water in a spray bottle. Not only will you create a refreshing aroma, but this mixture creates an environment that mice can’t stand.
  2. Target Common Entry Points: Spray the mouthwash mixture around areas where mice are likely to enter your home. Think about gaps, cracks, or holes along your walls, doorways, or around pipes.
  3. Refreshing Cotton Balls: For a long-lasting effect, soak some cotton balls in undiluted peppermint mouthwash. Place these strategically around your house, particularly in corners, cabinets, or under appliances, where mice might hide.
  4. Create a Barrier: Mice often scurry along walls, so try wiping down your baseboards and lower sections of walls with peppermint mouthwash. By doing this, you’re setting up an aromatic barricade for these pesky intruders!
  5. Don’t Forget the Outdoors: Spray or wipe peppermint mouthwash around outdoor entry points, such as garage doors, vents, or even holes in your home’s exterior. You can even spray mouthwash around your garage, shed, rv or car! This can help deter mice from even attempting to get inside.

Mice can’t stand the strong scent of peppermint mouthwash. This is because the menthol component in peppermint overstimulates their sensitive noses, making it unbearable for them. By using this natural deterrent, you’re effectively repelling mice without resorting to harsh chemicals or traps.

If you’re looking for the best place to put mouthwash to use, here’s a table that summarizes the most likely places where mice are found in the home:

Area of the HouseLikelihood of Mice
Laundry RoomMedium
Living RoomLow

Remember, consistency is key when using mouthwash to repel mice. Reapply the solution regularly and watch as these unwelcome visitors scamper away from your home.

Types Of Mouthwash That Deter Mice

Peppermint Mouthwash

Peppermint mouthwash is a popular choice for those seeking a natural solution to their mouse problem! Mice absolutely can’t stand the strong, minty scent of peppermint. As a result, it effectively repels them. Here’s how you can use it:

  1. Pour some peppermint mouthwash on cotton balls.
  2. Place these cotton balls strategically in areas where you suspect mice are lurking.
  3. Replace the cotton balls every few days to keep the scent fresh.

Fun fact: the menthol compounds in peppermint irritate the nasal cavities of mice, making it a highly effective deterrent! If you’re looking for a more natural peppermint mouthwash, try out Hello’s Naturally Fresh Antiseptic Alcohol Free Mouthwash.

Spearmint Mouthwash

Lovely spearmint mouthwash shares a similar minty vibe as peppermint mouthwash, making it another option for mouse repellent. To utilize spearmint mouthwash as a deterrent:

  1. Dilute the mouthwash in water in a spray bottle.
  2. Spray around your home’s entry points and other mice-prone areas.

Mice will definitely think twice before sneaking into your home! Listerine’s Freshburst Antiseptic Mouth Wash will send those pesky mice packing!

Wintergreen Mouthwash

Wintergreen mouthwash lends a more subdued, but still potent, scent that deters mice effectively. It works similarly to its minty counterparts in repelling the pesky rodents. Follow the steps below to utilize wintergreen mouthwash as a deterrent:

  1. Soak cotton balls in the mouthwash.
  2. Place the soaked cotton balls in targeted areas.
  3. Maintain the scent by refreshing the cotton balls every few days.

Keep in mind, while not as strong as peppermint or spearmint, mice still aren’t fans of the wintergreen aroma! Crest’s Gum Care Mouthwash comes in cool wintergreen, a scent that mice cannot stand.

Cinnamon Mouthwash

Lastly, cinnamon mouthwash offers a spicy alternative that can still send mice packing! It has a warm, intense aroma that mice find uncomfortable, hence deterring their unwelcome visits. Here’s how you can use cinnamon mouthwash as a repellent:

  1. Dampen cotton balls with cinnamon mouthwash.
  2. Distribute them around your home in susceptible areas.
  3. Don’t forget to replace them every few days to keep the scent potent.

The strong smell of cinnamon mouthwash will have mice scurrying away in no time! If you’re looking for a good cinnamon mouthwash, go with Act’s Anticavity Flouride Rinse.

And there you have it! A variety of mouthwashes that can help keep mice away the natural way. Remember to stay diligent with your efforts, replacing the cotton balls or spritzing the areas regularly to maintain the effectiveness of your mouthwash deterrent!

Other Common Methods to Deter Mice

Food kept in glass jar containers to keep pests out

Sealing Entry Points

One way to keep mice away is by sealing entry points in your home. Mice can get through small openings, so use sealant or steel wool to block any gaps or holes you find. This is a proactive approach, as you prevent mice from entering your home rather than dealing with them once they’re in!

Pest Proofing

It’s always good to take measures to deter mice, and one great solution is pest proofing your home. Here are a few tips:

  • Store food in air-tight containers
  • Clean spills and crumbs regularly
  • Keep garbage cans tightly sealed
  • Make sure the surrounding areas outside your home are well-maintained

A regularly-cleaned home, free of possible hiding spots, is much less enticing for mice.

Professional Pest Control

Sometimes, despite your best efforts, mice problems persist. If that’s the case, don’t hesitate to call a professional ! They have the expertise and equipment needed to effectively address your mice issues, using more traditional methods such as traps or poison.

To find a local professional near you, feel free to use our nationwide pest control finder!

Mouthwash: Keeping Mice Away

Peppermint is said to be a mice-deterring scent, and mouthwash often contains a significant amount of it. So, does mouthwash deter mice?

To try it, just mix mouthwash and water in equal parts in a spray bottle, then spray it in areas where you’ve noticed mouse activity.

Keep in mind that although this method may work for some, it should not be considered a complete solution. To fully deter mice, ensure you follow additional pest control measures like sealing entry points, pest-proofing, or calling in professionals if needed!

Other Scents That Will Repel Mice


Peppermint scent is a popular natural mouse repellent that you can easily apply to cotton balls or even use tea bags as an alternative method. This essential oil contains menthol, which gives it a strong aroma that mice dislike.

An other way to effectively use the scent is to diffuse peppermint oil, you can diffuse it in an aromatherapy diffuser.

Some people opt for peppermint-scents products instead of the direct oil! If you’re sold on that, head on over to our article for the absolute best peppermint oil products to use to repel mice!

And get this – you can even use peppermint scented candies like Altoids to deter mice as well!


Believe it or not, the strong and spicy aroma of cinnamon can help keep mice at bay. To take advantage of this natural mouse repellent, stash cinnamon sticks or sprinkle cinnamon powder in areas such as drawers, closets, and cabinets, and underneath furniture.

Who knew that your home could smell inviting to you, while deterring mice at the same time?

Cayenne Pepper

Cayenne pepper is another DIY solution that has proven effective in deterring mice. Mice can’t tolerate the scent, so sprinkling cayenne pepper in problem areas can certainly help protect your home from these unwanted guests. You can also make a repellent spray by mixing cayenne pepper with water and applying it to places where mice are most likely to enter.

Preventing Mice Infestations

Mouse in the kitchen eating bread

Proper Food Storage

To prevent mice from being attracted to your food, store items in airtight containers and use peppermint mouthwash-soaked cotton balls placed around your pantry and kitchen.

Eliminating Nesting Spots

Mice are always on the lookout for cozy nesting spots. By using mouthwash, you can help deter them from choosing your home to settle in. For example, peppermint mouthwash can be used to create a barrier around potential nesting areas like cluttered storage spaces or hidden corners.

Simply soak some cotton balls or rags in the mouthwash and place them in these areas, and you might just save yourself from a mouse problem!

Regular Cleaning

Maintaining a clean and tidy home is key to deterring mice. Remember to clean places that are often overlooked, like behind appliances and under furniture. While you’re at it, why not add a touch of peppermint mouthwash to your cleaning solution? Not only will your home smell minty fresh, but you’ll also be less likely to have unwanted critters moving in.

Pest-Proofing Your Home

Securing your home from mice starts with identifying and sealing any possible entry points. Mice can squeeze through tiny cracks and gaps, so you need to be vigilant. One approach to pest-proofing is to use steel wool and a sealant to block gaps.

To add an extra layer of deterrence, add some peppermint mouthwash to a spray bottle with water and mist around windows and doors. This will create a barrier that mice will likely find unappealing!

By focusing your efforts on proper food storage, eliminating nesting spots, regular cleaning, and pest-proofing your home with mouthwash, you can use this natural solution to help prevent mice infestations.

Keep in mind that while peppermint mouthwash may be effective in repelling mice, it might not be a definitive solution for severe infestations. Nonetheless, it can help keep your home smelling fresh, and deter those pesky mice from taking up residence in your space!

That’s A Wrap!

Mouthwash, particularly with peppermint flavor, can be an effective solution to deter mice from your home! Mice have an incredibly strong sense of smell, and the refreshing scent of peppermint can be overwhelming for them.

As someone who’s dealt with pesky rodents in my own abode, I can personally vouch for the effectiveness of using mouthwash to keep these critters at bay. So, let’s recap and understand why this simple household item works wonders in repelling mice.

Types of Mouthwash Mice Hate

To maximize the effect, you should choose a mouthwash with a strong peppermint flavor. From my experience, mice seem to detest this cooling and stimulating scent.

  • Listerine Cool Mint Antiseptic Mouthwash
  • Crest Pro-Health Peppermint Mouthwash
  • Scope Outlast Long Lasting Mint Mouthwash

These brands are easily available on Amazon, making it convenient for you to get them and give them a shot!

How to Use Mouthwash to Repel Mice

Using mouthwash to deter mice is surprisingly easy! Here’s a simple effective method:

  1. Soak cotton balls or pieces of cloth in the peppermint mouthwash.
  2. Place these soaked cotton balls or cloth pieces in areas where you’ve noticed mouse activity, such as corners, entry points, and small gaps in walls.
  3. Replace and refresh the soaked materials every few days to maintain a strong scent that keeps the mice at bay.

The Science Behind Mouthwash’s Effectiveness

Mice possess a well-developed sense of smell that is crucial for their survival. However, this also means they are sensitive to strong odors. Mouthwash, especially peppermint-flavored ones, has an intense smell that interferes with their olfactory system, causing them discomfort and driving them away from your home.

As we wrap up this article, I hope you find this method useful in your pursuit of a mouse-free home! Remember, repelling mice is a continuous task, so stay vigilant and be ready to bust out that mouthwash when needed. Happy (and rodent-free) living to you!

How to pest proof your home in under a day e-book by Zack DeAngelis

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