There are several scents that are toxic to dogs, and pet owners should be aware of them to keep their pets safe. Here is a list of some of the most common toxic scents and essential oils to avoid:

• Cinnamon
• Citrus (d-limonene)
• Pennyroyal
• Peppermint
• Pine
• Sweet birch
• Tea tree (melaleuca)
• Wintergreen
• Ylang ylang
• Anise
• Clove
• Thyme
• Juniper
• Yarrow
• Garlic
• Geranium

It is important to note that essential oils and animals do not mix, and even a small amount of exposure can be harmful to dogs. Symptoms of poisoning in pets include difficulty breathing, drooling, fatigue, weakness, difficulty walking or stumbling, muscle tremors, pawing at the mouth or face, redness or burns on their lips, tongue, skin or gums, and vomiting. If you suspect that your dog has ingested or come in contact with any toxic scents or essential oils, it is important to seek veterinary care immediately.