How do you know when to call a lice service or when what you are finding is lice vs dandruff. Checking for lice can be tricky if you don't know what you are looking for. The best head lice treatment will not only get rid of lice but will teach you how to avoid catching it in the future. Parents often ask us what kills lice? You don't want to use pesticides to kill lice because they can be harmful to your child. Our lice products get rid of lice with enzymes and peppermint. Safe for your child but it will eliminate the lice.