Yes! It is essential that you follow the instructions for the treatment in the correct manner each time you receive a new treatment. Clarifying Shampoo will do a necessary deep cleaning to your hair by removing impurities and product build up from the hair shafts. Styling products, such as hair mousse, hair gel, hair spray, conditioners and even daily shampoos can cause buildup on the hair over time.unex Keratin Clarifying shampoo will help remove the buildup and prepare the hair for a clean start and complete necessary preparation for the unex Keratin Treatment. Damage caused by Clarifying Shampoo to the treatment happens when clients mistakenly use this as a daily hair wash instead of Post Treatment Shampoo as recommended only for after-care.