Applying L'Oréal Professionnel Anti-discomfort intense scalp soother treatment is super easy. To use L'Oréal Professionnel Anti-discomfort intense scalp soother treatment, take the required amount of product into your palm and apply it on towel-dried shampooed hair and scalp. Then, gently massage your scalp with your fingertips and wait for 3-5 minutes before rinsing with water.