A preshampoo and shampoo duo. In need of a hair overhaul? You need this duo. The Intensive Treatment & Shampoo Duo features two of OLAPLEX’s most loved products; including the No.0 Intensive Bond Building Hair Treatment; which the highest dose of OLAPLEX technology in any athome product. The preshampoo treatment works to prime the hair to help it absorb nourishment; rebuild bonds; and strengthen and protect strands from damage; while the No.4 Bond Maintenance Shampoo helps to repair and protect the hair from split ends and frizz. Vegan Cruelty free Suitable for all hair types OLAPLEX products are thoroughly tested in accordance with industry standards inhouse and by independent thirdparty laboratories for safety and efficacy.Set Includes: No.4 Bond Maintenance Shampoo; 250ml No.0 Intensive Bond Building Hair Treatment; 155ml