Are Essential Oils Safe for Dogs?

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Essential oils from lavender to peppermint have become increasingly popular for use in aromatherapy and in alternative medicine. These potent oils are said to do everything from balance hormones to ease anxiety to treat skin issues.

There may be ways to use essential oils safely in pets, but it should only be done under the guidance of a veterinarian who is experienced with their use. In some cases, essential oils can do more harm than good. Care should always be taken when considering alternative medicines for your pet. When used properly, certain essential oils may be beneficial, however even those that are safe and useful for people can be toxic to pets.

Essential Oils and Dogs

Made from highly-concentrated plant substances, essential oils are thought by some to have an array of health and wellness benefits for humans. Of course, it's only natural to want to share these benefits with your pet.

Some holistic veterinarians incorporate essential oils into their treatments. However, the use of essential oils to treat ailments in animals should be done with extreme caution. Pet owners should be aware that there isn’t yet a significant amount of research to determine whether or not these potent oils are actually effective in treating your dog. In fact, many essential oils are toxic.

When toxic effects occur, dogs can experience changes in behavior, central nervous system problems, respiratory issues, liver failure, and other serious health problems. However, that doesn't mean you can't continue to use some essential oils in your home; make sure you know which are safe and which are toxic.

Potential Dangers of Essential Oils

Some essential oils can be toxic to dogs, whether consumed orally, inhaled in the environment, or after making contact with the skin. Some of the more dangerous oils include melaleuca (tea tree), wintergreen, sweet birch, pine, pennyroyal, cinnamon, and certain citrus oils.

Melaleuca/Tea Tree Oil: Though diluted levels found in shampoos are usually safe, the high concentration of tea tree in essential oils can cause significant toxicity in dogs. Whether absorbed through the skin or ingested, concentrated tea tree oil can cause irritation at the site of contact (skin and/or mucous membranes), vomiting, depression, drunken gait (ataxia), paralysis, and tremors.

Wintergreen: Also known as Eastern Teaberry, Wintergreen contains methyl salicylate, which is similar to the active ingredient in aspirin. This essential oil has been used as a topical pain reliever in humans and as an additive in mint scented candles. Dogs exposed to concentrated wintergreen oil will experience signs similar to aspirin toxicity. Common effects include GI irritation, leading to vomiting and diarrhea, as well as seizures and coma. Some dogs can also develop liver and/or kidney failure. 

Pine Oil: Made from the Scots Pine, these essential oils have been used to naturally clean, disinfect, and remove odors. Pine oil has also been used therapeutically in humans to reduce swelling and aid in circulation. When used orally or topically on dogs, pine oil can cause irritation to the skin, mucous membranes, and GI tract. Once absorbed, it can lead to issues in the central nervous system. Signs of toxicity include vomiting, excessive salivation, ataxia, weakness, lethargy, and disorientation. ,

Pennyroyal: Because this essential oil has historically been used as an insect repellent, well-intentioned pet owners may try to use it as a natural flea preventative. Unfortunately, whether absorbed through the skin or ingested, pennyroyal can be fatal to dogs. Common clinical signs including lethargy, vomiting, diarrhea, seizures, coma and death. Many dogs also have liver problems.

Cinnamon: Essence of cinnamon can be found in many household items, including scented candles, fragrance diffusers, foods, and drinks. Different from cinnamon spice, cinnamon oils in all forms can be toxic to dogs. Dogs ingesting or coming into contact with cinnamon oil can develop vomiting, diarrhea, liver disease, and low blood pressure. While inhalation of any essential oil is dangerous, cinnamon in all forms is extremely irritating to the lungs, leading to coughing and breathing problems as well.

This is not a comprehensive list. Be sure to educate yourself about which oils could prove toxic to pets.

If you diffuse oils in your home, you should avoid using any of the ones listed here. The diffusion itself may be harmful to dogs if you are using an oil that can cause problems when inhaled. Also simply having these toxins in your home is a risk as your dog could accidentally ingest some of the oil and/or get it on its skin.

Inhalation of essential oils is a problem for dogs and other pets. Some of these oils are irritants to the lungs and inhalation can also lead to systemic effects of toxicity in some cases. If a dog gets oil in their airway, this can also cause serious irritation and disease to the lungs.

Fortunately, there are some essential oils that generally considered safe to use around your pets as long as they are used properly.

Essential Oils for Aromatherapy

Aromatherapy is said to have mental and emotional benefits for both humans and animals so finding safe ways to do this may benefit everyone. When essential oils are diffused, they tend to be safer than when applied to the skin or ingested, so in some cases, this can be safely done around dogs. However, there can be other ingredients in these oils that are not healthy for pets to breathe in, as many contain volatile organic compounds that may not be specifically listed on their labels.

If you do plan to use diffused oils, use high-quality, pure essential oils. Make sure the oils you are using come from a reputable source.

Always keep diffusers and oils out of reach of your dog. Clean spills thoroughly to avoid accidental ingestion. Ideally, put the diffuser in a room that can be closed off from pets when they are unsupervised.

Avoid diffusing oils at a dog's nose level. Also, keep the scent to a minimum. Even if non-toxic, essential oils can smell overwhelming and cause stress in dogs. Remember that your dog's sense of smell is about 10,000 times more acute than yours. This means that if you can barely smell something, your dog might be having sensory overload.

Make sure not to diffuse oils in every area of the home. Your dog should be able to get away from a scent if it's too overwhelming.

Lavender is a great essential oil to use for aromatherapy. It is said to have a relaxing effect on humans and animals alike. Known to be soothing to the central nervous system and calming when inhaled, a 2006 study the Journal of the American Veterinary Medical Association actually showed that the use of diffused lavender oil as aromatherapy helped reduced dogs’ movement and vocalization during travel. Again, use it sparingly as to not overwhelm your dog.

Can You Safely Use Essential Oils On Dogs?

If you would like to use essential oils on your dog, it should only be done under the direct supervision of a veterinarian who is educated in their use. Applying essential oils to a dog's skin or coat can be very risky. The oil may accidentally come into contact with sensitive areas such as their eyes or mucous membranes. In some cases, oils applied directly to their skin can also be irritating, particularly for pups who already suffer from sensitive skin or other dermatological issues. Some toxins can also be absorbed directly through the skin and then cause serious systemic effects.

Most importantly, most dogs will want to lick off anything you put on their skin or coat. Ingesting essential oils can be extremely dangerous. Always avoid letting your dog lick or swallow essential oils. 

Once you have consulted a vet about which oils can benefit your dog, make sure that the essential oils you use are properly diluted. NEVER apply an essential oil to a dog when it is at 100% potency. You'll also want to keep your pet’s size in mind when diluting oils as smaller dogs will always be more vulnerable to potentially harmful side effects. Many people will dilute essential oils into olive oil, coconut oil, or similar oils. Make sure the diluting oil is also safe for pets and again, only do this under the guidance of a veterinarian familiar with essential oils.

Unlike when using essential oils on humans, dogs are likely to want to lick any oils off of their skin, which can result in tummy troubles. That’s why it’s especially important that pet owners are educated and guided by their veterinarian on which oils are safe to use in pet-friendly homes. Above all, be very cautious that they’re always stored in a place that can’t be accessed by a curious and mischievous pooch.

Many pet owners have undoubtedly heard of the possibility of using essential oils in place of other commercial flea and tick preventives. However, while some essential oils may be mildly effective at repelling insects, they are not strong enough to kill them. Unfortunately, these are not proven methods to control fleas or other parasites.

Always be sure to keep all essential oils completely out of reach of pets, even those considered safe. If these potent oils are accidentally ingested by your four-legged friend, contact both your veterinarian and an animal poison control center immediately.

Edited by Jenna Stregowski, RVT

The Spruce Pets uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
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