All hazards › Essential Oils › Cinnamon Oil & cats

Is Cinnamon Oil Safe for Cats?

☠️ Toxic
✅ 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.
No. Cinnamon oil is toxic to cats, whose livers cannot process cinnamaldehyde and other compounds it contains.

Why it’s a problem

Cats lack glucuronyl transferase, so cinnamon oil’s phenol-like compounds accumulate and burn the mouth, gut, and skin. Exposure through grooming after skin contact or through heavy diffusion has caused poisoning in cats.

How to keep your pet safe

Never use cinnamon oil on or near a cat, including in potpourri or scented crafts. Avoid diffusing it where a cat lives. Keep spice oils and scented products in closed cabinets.

Warning signs to watch for

Drooling, vomiting, mouth redness or sores, unsteadiness, weakness, tremors, coughing or labored breathing

When to call the vet

Contact a veterinarian or pet poison hotline immediately if your cat was exposed. Rinse any skin contact with mild soap and water while you arrange the call.

Common questions

Is a cinnamon-scented diffuser safe if my cat stays upstairs?

Scent and oil particles spread through a home, and cats groom residue off their fur. It is safest not to diffuse cinnamon oil at all in a home with cats.

Is cinnamon spice in food dangerous to my cat?

Dry cinnamon in trace amounts is much less dangerous than the oil, but cats should not eat spiced foods. The concentrated oil is the serious hazard.

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).