Unsafe Oils for Aromatherapy

essential oil hazardThe following is a list of essential oils that should be avoided for aromatherapy use. Although you may find these essential oils are available in stores or online, that should not be taken as an indication of them being safe.

This is not an exhaustive list. You are encouraged to seek the guidance of your doctor and/or a reputable and experienced aromatherapist before using any essential oil. Depending on your health, age, and other factors, an oil that is suitable for someone else may be dangerous or hazardous to you.

Note that just because a particular essential oil doesn’t show up in this listing is not an indication that it is okay for your use. Again, please seek professional advice for guidance.

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Essential oils to avoid using due to high toxicity levels or other dangers
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Ajowan
Aniseed
Arnica
Bitter Almond
Bitter Fennel
Boldo Leaf
Buchu Leaf
Calamus
Camphor (yellow/brown)
Cassia
Chervil
Cinnamon (bark)
Costus
Deertongue
Dwarf Pine
Elecampane
Garlic
Goosefoot
Horseradish
Jaborandi Leaf
Melilotus
Mugwort
Mustard
Narcissus
Onion
Oregano
Parsley Seed
Pennyroyal
Rue
Sage (Common)
Santolina
Sassafras
Savin / Savine
Savory
Southernwood
Spanish Broom
Sweet Birch
Tansy
Tarragon
Thuja
Thyme (Red)
Tonka
Wintergreen
Wormseed
Wormwood



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