Clarifying Shampoo comes as the first step in the Advanced Keratin Treatment as a “pre-treatment” shampoo designed to cleanse the hair of build-up from styling products and chemical services. Used twice, it aids in opening the cuticles so that the treatment will permeate faster. Licorice and Grape Seed extracts act as anti-oxidants to clean and protect the hair and scalp. 16 FL OZ