Yamamoto Research Imugen is a dietary supplement of vitamin C, zinc and Echinacea extracts. Vitamin C and zinc contribute to the normal functioning of the immune system and to the protection of cells from oxidative stress. Zinc promotes normal cognitive functioning, while vitamin C helps reduce tiredness and fatigue. In addition, Imugen contains Echinacea extracts (3 different types of extracts in the form of Ekina3) which supports the body’s natural defences and the functionality of the respiratory tract. Ekina3 is a patent consisting of the three different forms of Echinacea: Echinacea purpurea L. Moench root and aerial parts, Echinacea pallida Nutt. root and aerial parts, Echinacea angustifolia DC. root, which guarantees a much more complete and powerful phytocomplex.