You can use Elimax as often as you like. Elimax Shampoo is particularly suitable for frequent hair washing. One or two treatments will usually be enough to get rid of the tiny creatures. But there is always a chance of catching them again from people who haven’t been treated. Elimax can always be used again, at no risk. And it will be just as effective. Elimax has a physical mode of action and does not contain pesticides, so the head lice cannot develop resistance. Washing your hair with Elimax Shampoo is as effective as washing with an ordinary 2-in-1 type shampoo.