Echinacea species are perennials belonging to the Aster family which originate in eastern North America. Echinacea has traditionally been used in herbal medicine for hundreds of years with a wide range of uses. Echinacea purpurea herb is believed to be the most potent Echinacea species.
The Plains Indians used various species of echinacea to deal with a wide range of problems. The settlers quickly adopted the therapeutic use of the plant, and since that time it has become one of the top selling herbs in the United States and is a popular product worldwide. Since the early 1900’s hundreds of scientific articles have been written about echinacea.
The constituents of echinacea include essential oil, polysaccharides, polyacetylenes, betain, glycoside, sesquiterpenes and caryophylene. It also contains copper, iron, tannins, protein, fatty acids and vitamins A, C, and E.
Capsule – vegetable cellulose.
Suggested use: 1 capsule two to three times a day
See what Wikipedia says:
http://en.wikipedia.org/wiki/Echinacea