Saussurea costus
FAMILY: Asteraceae (Compositae)
SYNONYMS: S. lappa, Aucklandia costus, Aplotaxis lappa, A. auriculata.
GENERAL DESCRIPTION: A large, erect, perennial plant up to 2 metres high with a thick tapering root and numerous almost black flowers.
DISTRIBUTION: Native to northern India; cultivated in India and south west China. The oil is mainly produced in India.
OTHER SPECIES: Closely related to elecampane (lnula helenium), whose roots are also used to produce an essential oil.
HERBAL/FOLK TRADITION: The root has been used for millennia in India and China for digestive complaints, respiratory conditions, as a stimulant and for infection including typhoid and cholera. It is also used as an incense.
ACTIONS: Antiseptic, antispasmodic, antiviral, bactericidal, carminative, digestive, expectorant, febrifuge, hypotensive, stimulant, stomachic, tonic.
EXTRACTION: The dried roots are macerated in warm water, then subjected to steam distillation followed by solvent extraction of the distilled water. (A concrete and absolute are also produced in small quantities.)
CHARACTERISTICS: A pale yellow or brownish viscous liquid of soft, woody-musty, extremely tenacious odour. It blends well with patchouli, opopanax, ylang ylang, oriental and floral fragrances.
PRINCIPAL CONSTITUENTS: Mainly sesquiterpene lactones, including dihydrocostus lactone and costunolide (together up to 50 per cent), other sesquiterpenes such as costols, caryophyllene and selinene, as well as costic and oleic acids, among others.
SAFETY DATA: Non-toxic, non-irritant, possible sensitization in some individuals. Subject to frequent adulteration.
AROMATHERAPY/HOME: USE
Skin Care: Perfume.
Respiratory System: Asthma, bronchitis, spasmodic cough.
Digestive System: Flatulence, indigestion, spasm.
Nervous system: Debility, nervous exhaustion and stress-related conditions.
OTHER USES: Fixative and fragrance component in cosmetics and perfumes. Used as a flavour ingredient by the food industry, especially in confectionery, alcoholic and soft drinks.... costus