The Olaplex Hydration Heroes Set features a duo of moisture-rich haircare essentials designed to revive dry, dull hair. This limited-edition collection works to cleanse and intensely hydrate, promoting stronger, smoother and party-ready locks. Set Contents: N°.4 Bond Maintenance Shampoo 100ml This travel-friendly shampoo gently cleanses the hair while delivering optimal moisture. The nourishing formula helps to improve manageability and leaves locks feeling stronger and healthier. Rich Hydration Mask 200ml A deep conditioning treatment designed to seal the hair cuticle for moisture that lasts up to five washes. It intensely hydrates to promote smoother, glossier and more resilient strands.