Licenders head lice treatment provides a safe and fast treatment that is highly effective at not only killing live lice, but also their eggs, thus making it a smart choice when dealing with head lice.Licenders uses the LouseBuster™ device. It is intended to kill or remove head lice and their eggs in the head hair of adults and children 4 years of age and older. We intend to do further clinical testing on children under 4 in the near future. To avoid using chemicals on children under 4, we recommend you do a traditional comb-out.