Hazardous Essential Oils

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The list shown below contains essential oils that should not be used in aromatherapy without the express administration by a qualified aromatherapy practitioner. Many should not even be used by a qualified practitioner. Do not assume that an oil is safe to use if it is not on this list.


Ajowan
Trachyspermum copticum

Almond, Bitter
Prunus dulcis var. amara

Arnica
Arnica Montana

Birch, Sweet
Betula lenta

Boldo Leaf
Peumus boldus

Broom, Spanish
Spartium junceum

Calamus
Acorus calamus var. angustatus

Camphor
Cinnamomum camphora

Deertongue
Carphephorus odoratissimus

Garlic
Allium sativum

Horseradish
Armoracia rusticana

Jaborandi
Pilocarpus jaborandi

Melilotus
Melilotus officinalis

Mugwort
Artemisia vulgaris

Mustard
Brassica nigra

Onion
Allium cepa

Pennyroyal
Mentha pulegium

Rue
Ruta graveolens

Sassafras
Sassafras albidum

Thuja
Thuja occidentalis

Wintergreen
Gaultheria procumbens

Wormseed
Chenopodium ambrosioides var. anthelminticum

Wormwood
Artemisia absinthium

Important Note: The information provided in the Oil Profiles area is for educational purposes only. This data is not considered complete and is not guaranteed to be accurate.