Olaplex No. 4 Bonding Maintenance Shampoo 250ml Information Olaplex No·4 Bond Maintenance Shampoo repairs and protects hair from everyday stresses including damaged hair, split ends, and frizz by re-linking broken bonds. Leaves hair easier to manage, shinier and healthier with each use. It is colour-safe and proven to reduce breakage and strengthen all types of hair. £23.80 Sorry, product is not in stock at the moment.