Nioxin Intensive Therapy - Clarifying Cleanser Nioxin Clarifying Cleanser gently neutralizes the hard water mineral deposits on hair and removes the chlorine effect from swimmers hair. Removes styling products and other environmental build up. To use, apply wet hair. Distribute onto the scalp and hair, lathering for 1 minute. Rinse. Follow with appropriate Nioxin Scalp Therapy and Nioxin Scalp Treatment