Lyclear Creme Rinse contains the ingredient Permethrin which belongs to a group of medicines called Pyrethroids that kill insects such as head lice. It is suitable for use on adults and children over 6 months of age. The product has a 10 minute contact time and a pleasant smell, making it suitable for asthmatics. It is available in a twin pack and kills head lice and their eggs. The active ingredient is Permethrin 1%. Suitable for use on women and children.