This dietary supplement contributes to soothe the upper respiratory tract during periods of catarrhal. It contains two specific complexes: Immurum concentrates a combination of three microbiotic strains, as well as an extract of eleutherococcus. The latter contributes to the well-being of the upper respiratory tract during periods of fragility. And Provaflu which combines a unique and patented strain of lactobacillus, K8, with an olive extract: Isenolic®. It also contains vitamin D which helps maintain a well-functioning immune system.