While essential oils can have benefits for humans, some can be toxic to dogs. Common essential oils that are harmful to dogs include tea tree oil, pennyroyal oil, cinnamon oil, citrus oil, pine oil, sweet birch oil, wintergreen oil, and ylang ylang oil. These oils can cause symptoms like vomiting, diarrhea, drooling, lethargy, tremors, and even liver damage or failure in dogs. It's important to keep these oils out of reach of pets and consult with a veterinarian before using any essential oils around dogs.

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Dogs Toxicity Symptoms Essential Oils Harmful