An evergreen conifer native to North America, now established in Europe, belongs to the cypress family. Maximum height 15-20 m, small scale-like, evergreen leaves with resin glands on the underside.
Twig tips from 2 to 3 m high bushes from controlled cultivation are used phytotherapeutically.
Numerous studies have shown an antiviral and immunostimulating effect such as stimulation of the production of cytokines (especially TNF-α, IL-6 and IL-1 activity in serum) and antibodies, activation of macrophages, proliferation of granulocytes, stimulation of CD 4 - positive lymphocytes. It should be noted that the studies always examined combination preparations with other immunostimulating plants.
HMPC: not processed
ESCOP: not processed
Commission E: not processed
Empirical medicine: bronchial catarrh, enuresis, cystitis, psoriasis, uterine carcinomas, amenorrhea and rheumatism - warts
Evidence-based phytotherapy in combination with other immunomodulating plants (Echinacea purpurea, Echinacea pallida, Baptisia tinctoria) for acute and chronic infections of the upper respiratory tract. Adjuvant to antibiotics for severe bronchitis, pharyngitis, otitis media, sinusitis. These studies showed an antiviral and immunostimulating effect such as stimulation of the production of cytokines (especially TNF-α, IL-6 and IL-1 activity in serum) and antibodies, activation of macrophages, proliferation of granulocytes.
Homeopathically in dilutions internally and externally.
In the cosmetics industry: see under Thuja occidentalis extract (INCI)