No one wants lice! So the best thing is to stop them before they even get close. Powerful,essential oils including rosemary and tea tree keep the lice at a distance. Natural essential oils repel the lice. These tiny creatures don’t want to get close to something that they know will harm them. Tea tree oil is a known insecticide, proven to kill nits and lice. Lavender is highly effective against head lice and also acts as a preventative. Eucalyptus and rosemary are also proven highly effective in treating head lice. Lice Prevention Roll-On insures that your child remains lice free. Made with love in the Golan Heights.