Properties and actions:caffeic acid derivatives (mainly chicoric acid), alkamides and polysaccharides are the main effective groups in echinacea, the main active constituent of immulone.simmulone contains also vitamin c which supports the integrity of mucous membranes. immulone stimulates the immune response by enhancing phagocytosis by macrophages and activation of natural killer cells. immulone increases cytokine production, such as interferon which helps in controlling viral infection. immulone has mild direct antibacterial activity and direct anti-inflammatory activity.simmulone has anti-hyaluronidase enzyme activity which prevents spreading of infection and accelerates recovery. immulone increases phagocytosis of candida by 45% and decreases the rate of recurrence of fungal infections. through these actions, immulone enhances the resistance to viral, bacterial and fungal infections in healthy subjects and shortens the duration of illness and helps in rapid recovery.