For all hair types. Thick, rich formula for clean, healthy hair. Classic Clean Prell Shampoo is an exclusive water-based formula designed specifically to leave your hair ultra clean. Prell Shampoo's thick, rich lather gently lifts away daily build up such as residue, dirt, oil and perspiration. It leaves your hair looking healthy and shiny. Classic Clean Prell Shampoo is alcohol free, so it cleans your hair without causing dryness. Plus, Prell rinses away easily, leaving you with healthy hair that is clean and full of body and shine.