Essential Oils and Dogs: What to Know Before You Try Them

Essential oils can smell great and help people relax, but dogs react differently. Some oils are safe when used carefully; others can make a dog seriously sick. If you want to use oils around your dog, the goal is simple: help your dog, not overwhelm or harm them.

Safe ways to use essential oils with dogs

Diffusion is the gentlest starting point. Run a diffuser on low for 10–15 minutes in a room where your dog can leave if they want. Use only 1–2 drops in a small diffuser session and watch your dog’s behavior. If they move away, stop.

For topical use, always dilute. A practical rule: 1 drop of essential oil in 4 teaspoons (20 ml) of carrier oil gives about a 0.25% dilution — a safe place to start for most dogs. For bigger dogs you can use up to 1% (about 4 drops in 4 teaspoons). Never apply undiluted oil directly to skin. Avoid the face, eyes, nose, and genitals. Do a small patch test: apply a tiny amount to a spot on the back and check for redness or irritation over 24 hours.

Inhalation (short, supervised exposure) is useful for calming or mild nausea. Place a drop on a cloth across the room — not right next to your dog’s nose — and keep sessions short. Always let your dog leave the area if they show discomfort.

Oils to use, oils to avoid, and warning signs

Commonly used and generally better tolerated: lavender, Roman chamomile, ginger, cedarwood, and frankincense — always diluted. These are often chosen for mild calming, nausea, or skin support, but don’t expect a miracle; watch your dog and adjust.

Do NOT use tea tree (melaleuca) — it can be toxic even in tiny amounts. Avoid pennyroyal, wintergreen, ylang-ylang, and concentrated eucalyptus or peppermint on small or young dogs. Citrus oils can irritate skin and cause sensitivity in some dogs.

Stop use and contact your vet if you see drooling, vomiting, tremors, trouble breathing, excessive lethargy, shaking, or unusual behavior. Pregnant dogs, puppies under six months, elderly dogs, and pets with liver disease need extra caution — check with your veterinarian first.

If you’re unsure, ask a vet who knows about essential oils or a certified animal aromatherapist. Start slow, use very low dilutions, and always put your dog’s comfort and safety first. When used carefully, essential oils can be a helpful tool — but they should never replace veterinary care.