It includes the No. 3 Hair Perfector pre-shampoo treatment, No. 4 Bond Maintenance Shampoo, No. 5 Bond Maintenance Conditioner, and No. 7 Bonding Oil, designed to reduce breakage, add shine, and improve overall hair health for all hair types. What's included No. 3 Hair Perfector: A pre-shampoo treatment that works to restore broken bonds, strengthen hair, and reduce breakage. No. 4 Bond Maintenance Shampoo: A hydrating shampoo that gently cleanses hair while reducing the appearance of split ends and adding shine. No. 5 Bond Maintenance Conditioner: A lightweight conditioner that moisturizes, detangles, and helps to lessen the appearance of damage. No. 7 Bonding Oil: A concentrated, weightless oil that provides heat protection, boosts shine, and adds softness.