The below are essential oils list that should not be used in aromatherapy without the express administration by a qualified aromatherapy practitioner. Lots of them should not even be used by a qualified practitioner.  Do not assume that oil is safe to use if it is not on this list.
Ajowan
Trachyspermum copticum | Calamus
Acorus calamus var. angustatus | Almond, Bitter
Prunus dulcis var. amara | Pennyroyal
Mentha pulegium | Arnica
Arnica Montana | Rue
Ruta graveolens | Birch, Sweet
Betula lenta | Sassafras
Sassafras albidum | Boldo Leaf
Peumus boldus | Thuja
Thuja occidentalis | Broom, Spanish
Spartium junceum | Onion
Allium cepa | Wormseed
Chenopodium ambrosioides var.
anthelminticum | Mustard
Brassica nigra | Camphor
Cinnamomum camphora | Mugwort
Artemisia vulgaris | Deertongue
Carphephorus odoratissimus | Melilotus
Melilotus officinalis | Garlic
Allium sativum | Jaborandi
Pilocarpus jaborandi | Horseradish
Armoracia rusticana | Wormwood
Artemisia absinthium | Wintergreen
Gaultheria procumbens |
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This information is not considered complete and is not guaranteed to be accurate.
Safety Information: Do not take any oils internally without consultation from a qualified aromatherapy practitioner. Don’t apply undiluted essential oils, absolutes, CO2s or other concentrated essences onto the skin. If you have liver damage, are pregnant, epileptic, have cancer, or have any other medical problem, use oils only under the proper guidance of a qualified aromatherapy practitioner.
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