Inula Helenium Extract Worst Irritant No known benefits Inula Helenium Extract description _Inula helenium_ is the Latin name for elecampane; it is a plant extract that can be very sensitising to skin. In cosmetics, this ingredient is most often added for its fragrance. This plant can cause reactions for those allergic to plants in the ragweed family. Related ingredients: Inula Helenium Elecampane Horse Elder