Shake well and apply on dry hair. Make sure to soak the whole scalp to the hair tips. Leave on for 20 minutes.
Untangle and then use a lice comb through the hair to remove dead insects and nits.
Wash hair twice with a regular non-conditioning shampoo, and rinse well each time.
Repeat the application every 3 days during two weeks, or until there are no more nits.
Wash combs, brushes and linens in hot water.