Supersize your haircare essentials with the Olaplex No.4 Bond Maintenance Shampoo 1000ml. The bestselling shampoo intensively nourishes as it cleanses, utilising patented technology to promote a fuller-looking, tamed appearance. Ideal for hair that has been exposed to frequent colouring, bleaching, chemical treatments and heat styling, the shampoo delivers moisture without weighing your lengths down. Use daily or on every wash day as part of your Olaplex routine. The average use-up rate shows this product will last up to one year with a saving of 20%.