Friendly to hair, Unfriendly to Lice: RID Daily Defense Shampoo & Conditioner cleans, conditions and smells like a regular, everyday shampoo & conditioner while also being 100% effective at keeping lice away. | 24/7 Lice Defense: Contains the Lice Defense Factor (LDF) to defend against head lice all day long. | While some lice defense shampoos work only by repelling lice via scented oils, Rid Daily Defense uniquely works in 4 ways to keeps lice away. 1) Neutralizes the static charge in hair that attracts lice 2) Makes lice avoid hair 3) Impedes attachment 4) Stop lice from laying eggs in hair. | Safe for the Whole Family: Contains no harsh chemicals, pesticides or alcohol. | Use if there is a lice concern in your child's school or camp, after treating for lice to keep lice from returning, or to help prevent the spread of lice to siblings or other family members when there is a case of lice in the home.