Pyrethrum is a dense, perennial herb. Parthenolide and glycosides are believed to be the components responsible for the anti-inflammatory effects attributed to it and the muscle relaxant effects on smooth muscles.
Fish oil can be extracted directly or concentrated and placed in the shape of a capsule. Its active components are co-3 fatty acids [eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)].
Bulbs of garlic are removed and placed in the form of a tablet; the main active component is allicin, a by-product of the amino acid.
Ginkgo (Ginkgo beat both) is prepared from the leaves of the ginkgo tree; active components are believed to be terpene-ginkgolides and flavonoids.
Ginseng is a perennial herbaceous plant. Dietary supplements are obtained from American or Asian ginseng; Siberian ginseng does not contain components that can be active in 2 forms used in supplements.
Sulphate of glucosamine is the precursor of numerous cartilage elements. It is extracted from chitin (shells of crabs, oysters and shrimps) and occurs in the form of tablets or capsules, often combined with chondroitin sulfate.
Hydrastis, a vanishing American plant, is related to buttercup. Its active components - hydraustin and berberine - have an antiseptic and antiperspirant property.
Green tea is produced from dried leaves of an evergreen Asian bush. It can be drunk or swallowed in the form of a pill or capsule with an extract of green tea.
Cava is produced from the root of a shrub (Piper methysticum), which grows in the southern Pacific Ocean. It is taken in the form of tea or capsules. Active components are kavalactones.
Mariin thistle - a plant with purple flowers; its juice and seeds contain an active complex of silymarin, a powerful antioxidant.