Lice ERADICATOR Mousse is a pesticide-free lice treatment product that is safe for repeated applications and clinically proven to remove irritating and unhealthy head lice infestations. One application of this natural lice treatment gets rid of head lice and the nits because the enzymes in it softens the glue that holds the nits to the hair shaft, allowing them to be easily combed and rinsed away. The "resistance factor" never becomes an issue because it kills the lice on contact. A lice comb is recommended to help remove lice eggs (nits) after the Lice ERADICATOR Mousse treatment. The head lice and nits are off the head and down the drain within 30 to 45 minutes.