This Nioxin Clarifying Cleanser can gently neutralize the hard water mineral deposits on hair & remove the chlorine effect from swimmers hair. It also can remove styling products & other environmental buildup. How to use: Apply to wet hair. Distribute onto the scalp & hair, lathering for 1 minute. Rinse. Follow with appropriate NIOXIN Scalp Therapy & NIOXIN Scalp Treatment. Use as needed in place of NIOXIN Cleanser System 1-8. This product takes 3-5 working days to be despatched & NOT AVAILABLE FOR NEXT DAY DELIVERY.