The La Roche-Posay Kerium Anti-Dandruff Shampoo Gel is used for dry, minimal dandruff that adheres to the scalp, which is often associated with dull hair. Micro-exfoliating LHA provides precise, gentle, and targeted micro-peeling without irritating the skin, while Piroctone Olamine normalizes flaking scalp and acts as a growth inhibitor against the dandruff-causing yeast. As a result, the hair looks well-groomed, shiny, and soft.