All hazards › Essential Oils › Cedarwood Oil & cats

Is Cedarwood Oil Safe for Cats?

🚫 Not Safe

✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit

⚠️ Educational info only. If your pet just ate or touched something and looks unwell, skip the reading and call your vet — or Pet Poison Helpline (US): (855) 764-7661, ASPCA Poison Control (US): (888) 426-4435.

Not safely. Cedarwood oil is sometimes sold for pets, but cats clear its compounds poorly and concentrated oil can make them ill.

Why it’s a problem

Cedarwood oil contains terpenes that cats metabolize slowly because they lack glucuronyl transferase, so repeated exposure builds up. Illness follows grooming oil off fur or inhaling concentrated mist. Even though it appears in some natural flea products, home use of the oil is risky.

How to keep your pet safe

Never apply cedarwood oil to a cat, including homemade flea mixes. If diffused at all, use a few drops briefly in a large, ventilated room the cat can leave. Use only products specifically formulated and tested for cats, with your vet’s guidance.

Warning signs to watch for

Drooling, vomiting, lethargy, unsteadiness, coughing or labored breathing, skin irritation

When to call the vet

Call your veterinarian or a pet poison hotline if your cat was exposed and shows symptoms. Wash fur contact with mild dish soap so it cannot be groomed off.

Common questions

Is cedarwood oil safe for cats as a natural flea treatment?

Not as raw oil or homemade mixes. Cats cannot clear its terpenes and will groom applied oil off their fur. Ask your veterinarian for flea products tested on cats.

Is diffusing cedarwood around my cat safe?

Only brief, passive diffusion in a large, ventilated room is lower risk, and the cat must be able to leave. Do not use active or enclosed diffusion around cats.

More essential oils hazards for cats

🐱 Tea Tree Oil☠️ ToxicNo. Tea tree oil is among the most dangerous essential oils for cats — cats lack the liver enzym 🐱 Lavender Oil🚫 Not SafeNo. Lavender oil is unsafe for cats — milder than tea tree, but a cat’s liver cannot clear its c 🐱 Eucalyptus Oil☠️ ToxicNo. Eucalyptus oil is toxic to cats because they cannot break down its terpenes in the liver.🐱 Peppermint Oil☠️ ToxicNo. Peppermint oil is toxic to cats, whose livers cannot process the menthol and other terpenes 🐱 Wintergreen Oil☠️ ToxicNo. Wintergreen oil is toxic to cats, combining aspirin-like poisoning with terpenes their liver 🐱 Pennyroyal Oil☠️ ToxicNo. Pennyroyal oil is severely toxic to cats and has caused fatal liver damage even in small amo

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate or touched something concerning, contact your veterinarian or a pet poison hotline right away. In the US: Pet Poison Helpline (855) 764-7661, ASPCA Animal Poison Control (888) 426-4435 (fees may apply).