Echinacea purpurea extract (flower)
People take echinacea to lower the severity of cold and flu symptoms, including fever, cough, and sore throat (also known as pharyngitis). Echinacea is known to shorten the duration of colds and flus. Echinacea is one of the herbs that a lot of herbalists prescribe for helping to strengthen the immune system and helping the body fight off diseases."• Tutelyan, Victor A., and Boris P. Sukhanov. ""The Legislative Regulation of Biologically Active Food Supplements Circulation in the Russian Federation."" In Nutraceutical and Functional Food Regulations in the United States and Around the World, pp. 305-321. Academic Press, 2008"