At Lice Be Gone, we don't use any chemicals or heat treatments. We manually remove each and every louse and nit. Over the counter and prescription products are not entirely effective. In fact, super lice, or chemical resistant lice have evolved as a result of chemical use. The end result is that it has become increasingly difficult for families to manage a case of head lice on their own, without the help of a "nitpicking service such as Lice Be Gone.