La Roche-Posay Kerium DS shampoo is intended for intensive care against stubborn dandruff and scalp problems. It provides quick and long-term relief from persistent dandruff, relieves itching and intensely soothes the scalp. Thanks to the active ingredient LHA™, it gently removes dead cells, smoothes thickened skin and stimulates cell renewal, targeting the hair root and regulating the main cause of dandruff.