Cedar leaf oil comes from the Thuja occidentalis tree. It has been used historically by different cultures to treat many conditions, including breathing disorders, cancers, headaches, heart ailments, infections, inflammatory disorders, menstrual problems, and urinary disorders. Furthermore, Thuja has been used to induce abortions.
Thuja is closely related to other cedar genera also used as dietary supplements, including as Cedrus (common name: cedar) and Juniperus (common name: juniper).
Very little scientific evidence exists regarding Thuja. Clinical trials evaluating Thuja alone are lacking, and the available data are questionable.
Preclinical studies have demonstrated anticancer and immune-stimulating properties, but further research is necessary. Thuja is often used in homeopathy as a remedy for skin, urinary, and reproductive organ complaints. The herb is also used in combination with Echinacea purpurea, Echinacea pallida, and Baptisia tinctoria to relieve symptoms of common cold and upper respiratory tract infections and as supportive therapy to standard antibiotics.
Abendländischer Lebensbaum (German), almindelig tuja (Danish), alpha-pinen, alpha-terpine, American arbor vitae, American White Cedar, Amerikanischer Lebensbaum (German), ameriški klek (Slovenian), Arbor Vitae, arborvitae, Austamerikansk tuja (Norwegian), benzylbutyrolactol, borneol, camphen, camphene, carvotanacetone, catechine, cedar of Lebanon, cedars of Lebanon, cedarwood, cedarwood oil, cèdre blanc (French), Cedrus, Coniferales, Cupressaceae (family), cypress, Eastern Arborvitae, Eastern white cedar, essential oils, evergreen, False White Cedar, fenchone, gallocatechine, glycoproteins, Hackmatack, harilik elupuu (Estonian), isothujone, Juniper, kaempferol, kaempherol, kaempherol-3-O-alpha-rhamnoside, kanadalainen elämänpuu (Finnish), Kanadalífviður (Icelandic), kanadantuija (Finnish), Lebensbaum (German), lignan, lignans ((-)-wikstromal (-)-matairesinol and benzylbutyrolactol)), limonene, livsträd (Swedish), matairesinol, mearnsitrin, Meijer medicated chest rub, myrcen, myricene, myricetine, myricitrin, northern white-cedar, nyugati tuja (Hungarian), oil of cedar leaf, oksident tuja (Norwegian), origanes, origanol, Østamerikansk tuja (Norwegian), p-coumaric acid, Pinaceae (family), Pinales, plicatic acid, polysaccharides, procyanidin B-3, prodelphinidin, quercetin, quercitrin, red cedar, sabines, swamp cedar, tannic acid, terpinolen, Thuj, Thuja, Thuja occidentalis L., thujone, thujone white cedar, thuya américain (French), thuya d'occident (French), thuya du Canada (French), thuya occidental (French), tree of life, tuia (Portuguese - Brazil), tuia occidentale (Italian), tuja (Norwegian, Swedish), tuya (Spanish), umbelliferone, vanlig tuja (Norwegian, Swedish), white cedar, wikstromal, yellow cedar, zerav západní (Czech), zywotnik zachodni (Polish).
Combination products: Esberitox® or SB-TOX, (containing a dry extract 4-9:1 blend of Baptisia tinctoria (wild indigo) root, Echinacea purpurea and pallida (coneflower) root, and Thuja occidentalis (white cedar) leaf).
These uses have been tested in humans or animals. Safety and effectiveness have not always been proven. Some of these conditions are potentially serious, and should be evaluated by a qualified healthcare provider.
Common cold / upper respiratory tract infection
There is limited evidence that Esberitox®, a combination of