Oils That Should Not Be Used At All In Aromatherapy | | Almond, Bitter | Prunus amygdalis, var. amara | | Aniseed | Pimpinella anisum | | Arnica | Arnica montana | | Boldo Leaf | Peumus boldus | | Calamus | Acorus calamus-acorus | | Camphor | Cinnamomum camphorus | | Cassia | Cinnamomum cassia | | Cinnamon Bark | Cinnamomum zeylanicum | | Costus | Saussurea lappa | | Elecampane | Inula helenium | | Fennel (Bitter) | Foeniculum vulgare | | Horseradish | Cochlearia armorica | | Jaborandi Leaf | Pilocarpus jaborandi | | Mugwort (Armoise) | Artemisia vulgaris | | Mustard | Brassica nigra | | Origanum | Origanum vulgare | | Origanum (Spanish) | Thymus capitatus | | Pennyroyal (European) | Mentha pulegium | | Pennyroyal (N. American) | Hedeoma pulegioides | | Pine (Dwarf) | Pinus pumilio | | Rue | Ruta graveolens | | Sage | Salvia officinalis | | Sassafras | Sassafras albidum | | Sassafras (Brazilian) | Ocotea cymbarum | | Savin | Juniperus sabina | | Savory (Summer) | Satureia hortensis | | Savory (Winter) | Satureia montana | | Southernwood | Artemisia abrotanum | | Tansy | Tanacetum vulgare | | Thuja (Cedarleaf) | Thuja ocddentalis | | Thuja Plicata | Thuja plicata | | Wintergreen | Gaultheria procumbens | | Wormseed | Chenopodium anthelminticum | | Wormwood | Artemisia absinthium | |