Read the leaflet carefully before use. Use on dry and already detangled hair. Do not add water. 1/ Apply evenly and in sufficient quantity to adequately cover the entire scalp and hair, from roots to ends. 2/ Massage to allow the shampoo to penetrate well. Pay special attention to the areas around the ears, forehead, and nape. 3/ Leave on for 30 minutes. 4/ Slightly dampen the hair, then massage well to create a lather. 5/ Rinse the hair thoroughly. 6/ Separate the hair into sections. Use the provided lice comb section by section, from roots to ends.