Echinacea, known as the Coneflower, is a plant native to North America. It has demonstrated effects on immune function, especially against the common cold.
Echinacea purpurea-derived alkylamides exhibit potent anti-inflammatory effects and alleviate clinical symptoms of atopic eczema.
"...Echinacea purpurea-derived alkylamides shows great potential in alleviating cutaneous symptoms of Atopic eczema..."
Oláh, A., Szabó-Papp, J., Soeberdt, M., Knie, U., Dähnhardt-Pfeiffer, S., Abels, C., & Bíró, T. (2017). Echinacea purpurea-derived alkylamides exhibit potent anti-inflammatory effects and alleviate clinical symptoms of atopic eczema. Journal of dermatological science, 88(1), 67-77.Link
...well tolerated and clinically effective in alleviating symptoms more rapidly than placebo in patients with a common cold.
"Efficacy of Echinacea purpurea in patients with a common cold. A placebo-controlled, randomised, double-blind clinical trial."
Schulten, B., Bulitta, M., Ballering-Brühl, B., Köster, U., & Schäfer, M. (2001). Efficacy of Echinacea purpurea in patients with a common cold. Arzneimittelforschung, 51(07), 563-568.Link
The decrease in total daily symptomatic score was more evident in the echinacea group than in the placebo group. These effects of echinacea were associated with a significant and sustained increase in the number of circulating total white blood cells, monocytes, neutrophils and NK cells.
"A proprietary extract from the echinacea plant (Echinacea purpurea) enhances systemic immune response during a common cold."
Goel, V., Lovlin, R., Chang, C., Slama, J. V., Barton, R., Gahler, R., ... & Basu, T. K. (2005). A proprietary extract from the Echinacea plant (Echinacea purpurea) enhances systemic immune response during a common cold. Phytotherapy Research: An International Journal Devoted to Pharmacological and Toxicological Evaluation of Natural Product Derivatives, 19(8), 689-694.Link