Astragalus Complex is a strong tonic blend containing Astragalus, Echinacea purpurea root and Eleuthero. This combination of herbs contains many compounds including triterpenoid saponins, flavonoids, sterols, caffeic acid derivatives (especially cichoric acid), alkylamides, and a diverse group of constituents called eleutherosides. The Eleuthero component of this tablet is standardized to contain 600 mcg of syringaresinol diglucosides (eleutherosides) per tablet to ensure optimal strength and quality. Together these herbs and the compounds within them help to: support immune system function maintain feelings of general well-being support vitality facilitate the body's normal response to occasional stress promote a healthy response to environmental stress