Head lice are very common in schools and shouldn't be considered a cause of poor hygiene: they are caused by a small parasite, the louse, which lives exclusively on the human head and feeds on its blood. The nits (eggs), which are mostly laid behind the ears and on the nape of the neck, adhere to the hair thanks to a sticky substance.

Use the product like a normal shampoo, making sure to use enough to form a generous lather. Repeat the process twice. Dry your hair as usual. It's recommended to complete the preventative treatment by applying Pid Spray.