A.Vogel Echinaforce® Echinacea is a licensed traditional herbal remedy for colds and flu. This is exclusively based on long standing use. It helps the body fight the symptoms of influenza type infections and similar upper respiratory tract conditions by supporting the immune system, helping to maintain the body's resistance. Up to 10 species of Echinacea have been identified, but only three (Echinacea purpurea, Echinacea angustifolia and Echinacea pallida) are used medicinally. Echinacea purpurea, the species used in Echinaforce®, is considered to be the most widely researched.