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 | |