Are Essential Oils Safe for Cats & Dogs?

Linda Blaszka, Founder OTW

May 3

3 min read

Are essential oils safe for cats and dogs?

Some essential oils can be used safely around cats and dogs when properly diluted and used in well-ventilated spaces. But several are toxic—especially for cats. If you plan to use essential oils in a home you share with pets, it's important to educate yourself and exercise caution.

Essential oils are widely used to support relaxation, focus, and overall well-being. But when pets are part of the home, it’s natural to ask an important question: are essential oils safe for cats and dogs?

essential oil safety for cats and dogs in the home

The short answer is: some can be used safely, but with caution. Cats and dogs process essential oils differently than humans, and certain oils can be harmful—especially when used improperly.

This guide breaks down what you need to know, what to avoid, and how to use essential oils more safely around pets.

Why Essential Oils Affect Pets Differently

Cats and dogs have more sensitive respiratory systems and a stronger sense of smell than humans. In addition, cats lack certain liver enzymes needed to properly metabolize compounds found in many essential oils. This makes them especially vulnerable to toxicity.

Dogs are generally more tolerant than cats, but they can still experience irritation or adverse reactions depending on the oil, concentration, and method of use.

Because of this, even commonly used oils should be approached carefully when pets are nearby.

List of Essential Oils Considered Safer for Cats and Dogs

While no essential oil is completely risk-free, some are generally considered safer when properly diluted and used in moderation. When using these oils – never apply directly unless guided by a veterinarian and monitor your pet for any changes in behavior.

For Dogs (when properly diluted):

• Lavender

• Chamomile

• Frankincense

• Cedarwood

For Cats (with extreme caution and minimal exposure):

• Lavender (in very low concentrations)

• Frankincense (diffused lightly)

List of Essential Oils to Avoid Around Pets

Some essential oils are known to be toxic to cats and dogs and should not be used around them.

Common oils to avoid include:

• Tea Tree

• Eucalyptus

• Peppermint

• Cinnamon

• Clove

• Oregano

• Thyme

• Wintergreen

• Citrus oils (orange, grapefruit, lemon and others) can be irritating, especially for cats

According to organizations like the ASPCA (American Society for the Prevention of Cruelty to Animals), exposure to certain oils—especially through ingestion or concentrated skin contact—can lead to the following symptoms. If any of these occur, contact a veterinarian immediately.

Toxicity symptoms in pets:

• Drooling

• Vomiting

• Tremors

• Lethargy

• Difficulty breathing

General Safety Tips for Using Essential Oils Around Pets

• Always use oils that are well diluted

• Avoid applying oils directly to your pet’s skin or fur

• Keep all bottles out of reach

• Do not allow pets to ingest oils

• When in doubt, consult your veterinarian

Using a Diffuser Around Cats and Dogs

Diffusers are one of the most common ways essential oils are used in the home, but they require careful consideration when pets are present.

using an essential oil diffuser safely around cats and dogs

Best practices for diffuser use:

• Always diffuse in a well-ventilated area

cats in particular should never be confined

in a room where oils are being diffused

• Ensure pets can leave the room freely

• Use small amounts of essential oils

• Only diffuse for a short time

Signs Your Pet May Be Reacting to Essential Oils

Even when using oils considered “safe,” every animal is different. Below are subtle signs of discomfort to watch for. If you notice any of these, discontinue use immediately, move your pet to fresh air and contact your veterinarian if symptoms don’t subside.

Excessive licking or grooming
Hiding or avoiding the area
Sneezing or coughing
Changes in energy levels
Loss of appetite

Final Thoughts

Essential oils can be a supportive part of your home environment. However, when using essential oils around pets, it’s important to understand how they may affect both cats and dogs. While some essential oils are considered safer, others can be toxic to pets, especially when used improperly or in high concentrations.

If you choose to use a diffuser around cats and dogs, always do so with care—ensuring proper ventilation and giving pets the ability to leave the space. Referencing trusted resources like the ASPCA and your veterinarian can help guide safe decisions.

When it comes to using essential oils around pets, a cautious and informed approach helps create a space that feels safe for both you and your animals.