Horse Elder Slechtste Plantenextracten No known benefits Horse Elder description Horse elder, Latin name _Inula helenium_ and also known as elecampane, is a plant that can be very sensitising to the skin. In cosmetics, this ingredient is most often added for its fragrance. This plant can cause allergic reactions for those allergic to plants in the ragweed family. Related ingredients: Elecampane Himanthalia Elongata Extract Inula Helenium Inula Helenium Extract