Get

In Your Inbox

Catster 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 Tea Tree Oil Poisonous to Cats? Vet Reviewed Risks & FAQ

tea tree essential oil

Tea tree oil is often used for its antibacterial and antimicrobial properties but it should never be used on cats.

Holistic health practitioners often use a blend of traditional medical therapies as well as food, essential oils, teas, and aromatherapy to support wellness and relieve symptoms. With more and more people turning to alternative therapies, it’s important to understand the impact modalities such as essential oils can have on cats.

Unfortunately, tea tree oil is poisonous to cats. Even small amounts of the oil can be fatal for kitties in high concentrations.

divider 2 cats

What Is Tea Tree Oil Commonly Used for in Humans?

Tea tree oil comes from the Australian tea tree native to Southeastern Australia. It’s been used as medicine by First Nation members for millennia. Holistic medical practitioners use tea tree oil to fight acne, athlete’s foot, and fungal infections.

Many people also use it as a germ-killing antiseptic. Scientific studies suggest the oil can effectively treat acne, athlete’s foot, and dandruff. It can also be used with lavender to get rid of head lice. It’s used topically as the oil is toxic to humans when ingested1.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an 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 for PangoVet2 save money

divider 2 cats

Can You Use Tea Tree Oil Topically in Cat?

The answer here is no. Tea tree oil is toxic to cats when ingested or used topically. The topical application of just seven drops of highly concentrated tea tree oil1 can cause severe poisoning in cats. Cats absorb the toxin through their skin, and kitties also tend to lick themselves, resulting in ingestion.

If you are looking for a good, cat-friendly antiseptic, it is best to stick with chlorhexidine and iodine for treating your cat’s superficial nicks and cuts. Alcohol and peroxide, while safe for humans, are both problematic for your feline buddy, as both can damage your cat’s delicate skin and the vulnerable tissues underneath.

Pet shampoos with less than 1-2% tea tree oil are generally considered safe as long as label instructions are followed.

dripping natural tea tree oil in bowl
Image Credit: New Africa, Shutterstock

What Are The Signs of Tea Tree Poisoning in Cats?

Cats exposed to tea tree oil often start to hypersalivate and then may become weak and uncoordinated; some have trouble walking and lose the ability to control their hindquarters. Tremors can occur even when kitties have been exposed to relatively low doses of tea tree oil. Ultimately, consumption of or exposure to even small quantities of tea tree oil can lead to liver failure and even death in cats.

Highly concentrated products tend to be the most dangerous for cats. Exposure to as little as 10 millimeters of highly concentrated (100%) tea tree oil has resulted in death in some cats.

While tea tree oil is particularly toxic to cats, it’s important to remember that almost all essential oils are toxic to felines. Your cat lacks the liver enzymes required to break down essential oils, meaning that exposure to even small amounts of these products can quickly lead to serious problems.

Cats have even been known to display the signs of essential oil poisoning from inhaling the droplets from an atomizer. Keep in mind that some cases of essential oil poisoning come after a pet knocks over a human product and samples the oil or walks through it and ends up licking the product from their paws.

How Is Tea Tree Oil Poisoning Treated?

There’s no antidote you or the veterinarian can give to treat tea tree oil poisoning.  They will need veterinary treatment and support while the body clears the oil from their system.

Call your cat’s veterinarian immediately for guidance if you suspect your pet accidentally got into your tea tree oil. Make sure to have the bottle on hand when you call to provide your veterinarian with essential information, including all the ingredients and the product’s concentration.

You’ll also want to let the veterinarian know how much your furry friend consumed and when and if your pet exhibits any signs, such as confusion, lethargy, or difficulty walking.

While there’s no cure for tea tree poisoning, there are several things veterinarians can do to make your cat more comfortable and improve its chances of survival, including providing IV fluids and keeping your cat nice and warm. Both are essential to your cat’s survival if exposed to the toxin.

Female veterinarian holds sick cat close-up
Image Credit: megaflopp, Shutterstock

Does the Scent of Tea Tree Oil Repel Cats?

There is some evidence that cats do not like the strong scent of tea tree oil, but it is never appropriate to use any essential oil as a cat repellent due to the toxicity these products have and the serious consequences that follow when a kitty is exposed to even small amounts of the products. So while the scent of tea tree oil may be unpleasant to cats, it should not be used to keep your cat away from your sofa or out of your garden.

divider 2 cats

Conclusion

While tea tree oil offers several benefits for humans, it is toxic to cats. Your cat can suffer from tea tree oil poisoning after inhaling or ingesting even a tiny amount of the 100% oil. Even topical products can harm your pet. Tea tree oil and cats simply don’t mix.


Featured Image Credit: ronstik, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* 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 Catster 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.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Can Cats Eat Goat Cheese? Vet-Reviewed Nutritional Benefits & FAQ

As responsible cat parents, many people often wonder which treats are both safe and nutritious for their feline friends. While there’s an array...

How to Stop a Cat From Suckling: 6 Vet-Approved Tips for Prevention

Kittens often engage in suckling for a variety of reasons, including because they were weaned too early or find it comforting. This is...

Exotic Shorthair Cat Breed: Info, Pictures, Temperament & Facts

Ready to learn all about the Exotic Shorthair cat breed? This delightful and heartwarming feline presents a mix of Persian charm and easy-care...

8 Best Kitten Foods for Sensitive Stomachs in 2025 – Reviews & Top Picks

Some cats have sensitive stomachs. Whether due to genetics or their gut microbiome, some kittens can’t handle the same foods that other cats...

More related

What to Feed a Stray Cat That Shows Up at Your Door? Our Vet Answers

If you are feline-obsessed, then a stray cat showing up at your door might seem like divine providence. You were hoping for another...

Interview With UC Davis Researchers Lead Study on Potential FIP Cure

Courtney Hatt knows the horror and heartbreak of feline infectious peritonitis. As the co-founder of San Francisco’s first cat cafe, KitTea, she has...

Why Does My Cat Sit In My Chair? 5 Vet-Approved Likely Reasons & Prevention Ideas

Have you recently noticed that your furry companion has hijacked your chair? Every time you walk into a room, they are sitting in...

Can Cats Eat Cashews? Vet Approved Facts & FAQ

Cashews are small and delicious and can be the perfect snack. Humans love them, and they seem like a great treat for cats...

Keep reading

Cat Brain Anatomy: Vet-Verified Facts & Common Disorders

Anyone who knows a cat is familiar with just how different they act from humans. Sometimes, they do things that leave us feeling puzzled or confused. However, humans share more similarities with cats than they think. In fact, when it...

close up longhaired brown tabby cat

Is It Ok to Have Just One Cat? Vet-Verified Facts & Care Tips

Cats, although seemingly aloof, are social creatures that need to be around other cats or animals to live happy lives. Most cats love being around their humans and the attention they get, but there’s one question many cat owners have...

a woman holding a cat on her lap

Why Do Kittens Cry? 8 Vet-Reviewed Reasons & How to Stop It

Kittens are super cute, and many people go gaga for the tiny cats. Kittens are also an immense responsibility and a great worry, particularly since they tend to cry. A lot. They are sweet and adorable until they keep you...

Adorable tortie Maine Coon kitten

7 Best Top-Entry Litter Boxes in 2025 – Reviews & Top Picks

Top-entry litter boxes are aesthetically pleasing and fit in with modern décor more than standard litter trays. They’re tall and hygienic and help keep your house clean from lumps of kitty litter stuck to your feline’s paws. These litter boxes...

ginger cat inside red grey enclosed litter box

Is Dawn Dish Soap Safe for Cats? Bath Tips & Soap Alternatives

You’ve doubtlessly heard that cats usually bathe themselves, but they can’t take care of everything. If they get mucked up with mud, for example, they’ll need a real bath and not just their tongues. The problem with cats being seen...

Catster_Is Dawn Dish Soap Safe for Cats

Why Is My Cat’s Meow Suddenly Hoarse? 9 Vet-Verified Reasons

Cats are capable of making quite a few vocalizations. They meow, chatter, trill, purr, and hiss. All these sounds are unique ways that cats communicate with us and other animals (and sometimes, they’re just talking to themselves). But what if...

abyssinian-cat-meowing-at-the-sofa

Why Do Kittens Sometimes Die Suddenly? Vet-Verified Causes & Facts

Having a litter of newborn kittens in your house can be a cause for celebration, but it can sometimes also cause heartache. These tiny little bundles of fluff are incredibly fragile, and sometimes you might wake up to find that...

newborn kitten in man's hand

Are Elephant Ears (Alocasia) Toxic to Cats? Vet-Reviewed Houseplants Examined

You don’t need a green thumb for elephant ears (Alocasia) to thrive in your home. The plants only need indirect sunlight, moderate humidity, and weekly watering. An elephant ear’s large, two-toned leaves bring a hint of the tropics to any...

Catster_Are Elephant Ears Alocasia Toxic to Cats