L'Oréal Professionnel Serioxyl Advanced Purifying and Body Shampoo has been formulated for thinning hair. This lightweight gel gently purifies and gives a feeling of density to the hair. The hair is fuller and shinier. Hair loss does not happen overnight. In men, for example, it gradually occurs at the temples or in the middle of the head. It's a vicious circle and you want to get out of it. This hair densifying shampoo is a solution to help you have hair that appears denser.