OLAPLEX Maintenance Duo includes: - OLAPLEX N°4 Bond Maintenance Shampoo 250ml - OLAPLEX N°5 Bond Maintenance Conditioner 250ml - OLAPLEX N°4 Bond Maintenance Shampoo 250ml: Smarter than your average shampoo, Olaplex No. 4 Shampoo harnesses an exclusive active ingredient that repairs strands at cellular level - including damaged hair, split ends, and frizz - by re-linking broken bonds. Formulated to overhaul dry and straw-like hair, this silky lather intensely hydrates with nourishing Camellia Oil while zipping up fractured hair bonds, so you can carry on colouring and styling your tresses without sending your mane into meltdown. With every wash expect stronger, healthier and shinier hair with less frizz and flyaways. Key Benefits: - Repairs and maintains bonds within the hair - Eliminates frizz and flyaways - Reduces breakage. Olaplex No. 4 Shampoo works wonders on all hair types, but is especially beneficial for damaged tresses. Have your strands become dry, brittle and frizzy from b