BANLICE Mousse contains natural pyrethrins, which are insecticides that come from chrysanthemum flowers. Natural pyrethrins are generally recognised to be amongst the least toxic insecticides available for human use.
The pyrethrins in BANLICE Mousse work by over-stimulating the nervous system of lice. Put simply, the lice die from exhaustion. Because of its unique formulation, the pyrethrins in BANLICE Mousse also penetrate the shell of the nits (eggs) & act on the unhatched lice.