Essential Oils to Avoid

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According to Robert Tisserand in Essential Oil Safety 2nd edition, the following essential oils should not be used for external or internal use.

Essential OilBotanical Name
Bitter Almond (unrectified)Prunus dulcis, Prunus communis, Prunus amygdalus, Amygdalus communis, Amygdalus dulcis
BoldoPeumus boldus, Boldoa fragrans
Cade (unrectified)Juniperus exycedrus
Camphor (brown)Cinnamomum camphora, Laurus camphora
Fig LeafFicus carica
HorseradishArmoracia rusticana, Chochlearia armoracia, Armoracia lapathifolia
MustardBrassica nigra, Brassica juncea
Pine (Huon)Dacrydium franklinii, Lagarostrobos franklinii
SassafrasSassafras albidum, Nectandra sanguinea, Ocotea odorifera, Ocotea pretiosa, Cinnamomum porrectum,Cinnamomum rigidissimum
SavineJuniperus sabina
SnakerootAsarum canadense
Tea Tree (black)Melaleuca bracteata
WormseedChenopodium ambrosioides