Olaplex No.4 Bond Maintenance Shampoo 250ml restores internal strength and moisture levels to add incredible shine and manageability. The Olaplex No.4 Bond Maintenance Shampoo is formulated with patented OLAPLEX Bond Building Chemistry that re-links broken bonds to protect and repair damaged hair, split ends and frizz. This sulphate-free, paraben-free, gluten-free, vegan, nut-free and completely colour safe shampoo is suitable for all hair types and is designed to strengthen and repair hair structure, reduce breakage, eliminate frizz and flyaways, and restore internal moisture levels for healthy, shiny and manageable hair