Lice In Hair can be very difficult to remove. What you do first is very important. Stay away from the head lice shampoo's that have pesticides in them (Rid & Nix). Licenders all natural head lice shampoo is made with natural enzymes and will kill all the lice. The problem with other shampoo's is that they don't have a 100% kill rate and the lice come back when you think you are done. Lice have 6 claws which help them grip the hair so they can feed and are hard to comb out. We suggest saturating the hair with oil so that the lice can't grip the hair and feed. We recommend the Licenders Oil Treatment which is made from virgin olive oil and citronella.