If you have school-age children, you know how bad and frequent cases of head lice occur. The key is prevention and I have an effective way of preventing your child from getting them! I came up with this blend when my daughter was in the 3rd grade and she came home with the pesky critters. It took me over 3 hours and countless loads of laundry and not to mention the money spent on new combs, brushes, and if you have a girls bows, hair clips and I can just go on and on............. I experimented with many combinations but this one seemed to work best for me because it not only worked it also smells pleasant.....it's a mix of Lavender, Eucalyptus, Rosemary, Tea Tree and Peppermint Essential Oils. All you need to do is spray the hair everyday prior to leaving the house. I found that 3-4 sprays has worked well for us. It comes in a 2oz amber glass spray bottle ready for you to use.