Licener Complete Solution All-in-One Head Lice Single Treatment Shampoo kills head lice and their eggs in one single application of 10 minutes. Dermatologically tested and is gentle on the skin and hair with little odour. Clinically tested on children suffering from head lice. Suitable for adults and children from 2 years of age. Weight: 100 ml. Directions: Step 1: Apply the Licener shampoo to dry hair, massage in well, ensuring the whole head is covered from scalp to tips of the hair and leave for 10 minutes. Step 2: Rinse shampoo from the hair using lukewarm water. Depending on the length of hair one bottle of Licener may be required per person.