Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Is Peppermint Essential Oil Safe for Dogs? Vet-Reviewed Facts

Share

Dogster_Is Peppermint Essential Oil Safe for Dogs

Whether to treat fleas or manage a skin problem, it’s natural to wonder if peppermint essential oil can help your canine companion. It’s commonly mentioned by “alternative care” providers and pet owners from various walks of life. However, just because something is “natural” does not mean that it is healthy and safe.

Peppermint essential oil is not recommended for dogs for various reasons, but in short, there is clinical evidence of many negative effects, including toxicity, and very little scientific evidence of any benefits.

Let’s discuss what peppermint essential oil is and why you shouldn’t use it on your dog.

dogster paw divider

What Exactly Is Peppermint Essential Oil?

This substance is made by concentrating the peppermint plant with either mechanical processing or distillation until it becomes a potent oil. The point is to extract the compounds from the peppermint plant and concentrate them into a different form, which is pure oil.

This “essential” oil is combined with a carrier oil during preparation for sale. Peppermint oil has a unique makeup of compounds and chemicals, which affects how it is smelled, absorbed, and metabolized by the body. While this essential oil is effective for various uses, it is not a good option for use on dogs or cats.

Essential oil of peppermint in a small brown bottle with fresh green mint on an old wooden background
Image By: 5PH, Shutterstock

Why Peppermint Oil Is Not Safe for Dogs

We don’t support the use of essential oils with pets, and that includes the use of peppermint oil on dogs—or any animal, for that matter. To start with, dog’s noses are much more sensitive than ours and strong smells such as peppermint oil can cause them distress. When inhaled it can also affect their breathing and respiratory system. Peppermint oil exposure can cause toxicity and result in clinical signs like weakness, lethargy, vomiting, and diarrhea. If a dog is exposed to a large amount of peppermint oil, it can even be fatal.

Certain alternative practitioners promote the use of limited essential oils, but there have not been enough published studies to determine their efficacy or safety. However, we do know that there are inherent risks to exposing your pet dog to essential oils. For example, applying peppermint essential oil to your dog’s coat can irritate their skin and cause serious discomfort.

Essential oils are quickly absorbed into the body orally or through the skin and must be metabolized by the liver. This can be problematic for dogs, especially those that are young or old or suffer from liver disease. Consuming peppermint oil, even by licking it off the skin or coat, can result in problems like gastrointestinal distress. It is even thought that the use of essential oils can cause behavioral changes and problems with the central nervous system. Serious respiratory problems can also be a result of improper essential oil use.

dogster paw divider

Peppermint Essential Oil as Flea & Insect Repellent

It seems to be true that peppermint oil can help repel fleas, ticks, and other pests like mosquitoes and even flies. However, it is not worth the risk to apply peppermint oil directly on your dog. It is best to hang sachets dipped in peppermint oil near the entrances of your home, where your pets cannot reach them. Alternatively, you can grow peppermint plants outside in areas where your pets do not go. You can also diffuse peppermint oil in rooms where you want to get rid of fleas or pests when your dog is not spending time in there. Let the space thoroughly air out before letting your dog back in.

Homemade essential oil based mosquito repellent
Image Credit: FotoHelin, Shutterstock

Signs of Peppermint Essential Oil Poisoning in Your Dog

If your dog inhales or ingests peppermint oil and it causes a poisonous effect, they will display signs of illness and distress.

These can be mild or severe depending on how much peppermint oil they have been exposed to:
  • Vomiting
  • Diarrhea
  • Wheezing
  • Difficulty breathing
  • Drooling
  • Facial redness
  • Lethargy

Even if your dog does not show signs of illness after you witness them being exposed to a large amount of peppermint essential oil, you should still contact a veterinarian for consultation and recommendations.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's our online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

dogster paw divider

In Conclusion

Dogs should not be treated with peppermint essential oil—or any other kind of essential oil, for that matter—due to the potential for a toxic reaction. However, that is not to say that peppermint essential oil should be banned from your household. There are ways that you can use the oil without directly affecting your dog, including to help with pest control.


Featured Image Credit: Halil ibrahim mescioglu, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Dogster's Digital Magazine is Back!​

Dogster Magazine Cover June 2026

Vet-approved health & behavior advice

Real dog stories & community features

Ask Dr. Paola- Help! My Vet Suggests a Biopsy for My Dog! (June 15, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Why Some Dogs Treat Mealtime Like Playtime – And When to Pay Attention

Most dogs are reliable eaters. Bowl goes down, food disappears. So when a dog starts batting kibble across the kitchen floor, tossing pieces...

Major Win for Dogs: Ontario Becomes the Final Province to Ban Ear Cropping and Debarking

​​Ontario has approved new animal welfare regulations that will prohibit elective ear cropping and devocalization (debarking) procedures in dogs from January 1, 2027....

Dogster’s Weekly Photo Contest Winners: Most Adorable Puppy (June 8, 2026)

Every week our team gets the privilege of sorting through our readers photos to choose what dogs will win this weeks contest! See...

More related

Do Dogs Like Wearing Clothes? Vet-Verified Facts & Preferences

Some dog owners love to dress their pups in canine outfits. Whether for Halloween, Christmas, or some other event, there is undoubtedly a...

Nuclear Sclerosis in Dogs: Our Vet Explains the Signs, Diagnosis & Treatment

As our pets age, one common ocular change seen in senior and geriatric dogs is a condition called nuclear sclerosis, or lenticular sclerosis....

Top 9 Dog-Friendly Beaches in San Francisco, CA in 2026 (With Pictures)

San Francisco is always bustling with activity, whether on the streets, in restaurants, or at local attractions. The beaches are also popular destinations...

Why Is My Puppy So Hyper? 9 Vet-Verified Reasons

Puppyhood comes with a huge learning curve for your new puppy and for you as a new dog owner. While they learn about...

Keep reading

Freshpet Dog Food Review 2026: Recalls, Pros & Cons

Review Summary One of the first brands to promote fresh food for pets, Freshpet has been on the market since 2006. Freshpet is available at many pet food retailers and is instantly recognizable as the rolled food in the refrigerator....

Dogster_Freshpet Dog Food Review

Can Dogs Eat Macadamia Nuts? Vet-Verified Facts & FAQ

Macadamia nuts are a common ingredient in nut mixes and desserts. They’re a tasty, creamy nut that is a source of multiple vitamins and minerals, as well as fiber and antioxidants. So, you might be tempted to share your macadamia...

Can Dogs Eat Macadamia Nuts

12 Best Gourmet Dog Foods in 2026 – Top Picks & Reviews

We all want what is best for our canines, and premium food can be just the way to ensure that happens. Gourmet dog food options are becoming more popular as pet owners become more aware of their dog’s dietary needs,...

White fluffy dog looking at Ollie fresh dog food chicken and beef recipes on table

Can Dogs Have Green Tea? Vet-Verified Facts & FAQ

We all want the best for our pets. After all, we consider them family members. Therefore, it’s understandable why you might want to give your pup some calming green tea. Some scientific evidence suggests green tea may have human health...

Dogster-Can-Dogs-Have-Green-Tea

Can Dogs Eat Icing? Vet-Reviewed Facts

Whether you are planning to make a cake to celebrate a milestone in your dog’s life or you simply want to let your dog have a taste of icing, the sweet taste is guaranteed to catch their interest. Icing is...

Can Dogs Eat_icing

What Is Choline Chloride in Dog Food? Vet-Approved Facts & Benefits

If you’re one of the people who read the entire ingredients list on your dog’s food before purchasing it, you have likely spotted a few words you weren’t familiar with. One of the things you have likely seen in your...

Dog food in a bowl

Can Dogs Eat Eggs With Cheese? Vet-Reviewed Health & Nutrition Guide

Feeding your dog tasty treats is one of the simple joys in life, and as many dog owners will attest, it’s even more fun when you and your pet can share the same meal. If you’ve just made a delicious...

Can Dogs Eat Eggs With Cheese

Can Dogs Eat Ribs? Vet-Verified Nutrition Facts & Precautions

Ribs—whether we’re talking beef or pork ribs—are a tasty main dish that is just as good on the grill as in the oven. However, if you’re whipping up some ribs for dinner tonight, you might wonder if this is something...

person cutting pork ribs

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Dogster Email Newsletter