Echinacea Premium 1:2 combines the roots of the Echinacea angustifolia and Echinacea purpurea to enlist properties unique to each. The blending of these two plant species ensures that the specific caffeic acid derivatives (cichoric acid, echinacoside, cynarin) and the lipophilic components (especially alkylamides) are present in appropriate quantities. This product contains a minimum of 1.5 mg/mL of alkylamides to ensure optimal strength and quality. These substances and other unnamed phytochemicals work together to: enhance immune system function support healthy immune system response following stress stimulate normal interferon production for healthy immune system response encourage healthy upper respiratory tract function* Suggested Use: Dilute 5 mL (approx. 1 teaspoon) in water or juice once per day, or as directed.