Additiva Immun Direkt Sticks: Practical support for the immune system Additiva Immun Direkt Sticks offer a simple way to support the immune system with essential nutrients. They contain vitamin C, zinc, and selenium. meet your daily needs One stick of the orange-flavored granules is enough to cover the daily requirement of vitamin C, zinc and selenium, which contributes to supporting a normal immune system. Easy to use on the go No water required Place direct granules on the tongue Fast resolution in seconds Direct sticks are particularly ideal for use on the go, as they are quick and easy to use.