Olaplex Instant Hydration 4-Piece Gift Set is a luxurious haircare collection designed to deeply hydrate, strengthen, and restore all hair types. Featuring four essential Olaplex favourites, No.4 Shampoo, No.5 Conditioner, No.5 Leave-In Conditioner, and No.0 Hair Treatment-this set delivers a complete routine for nourished, smooth, and healthy-looking hair. Formulated with Olaplex's patented bond-building technology, each product works to repair and protect hair from damage caused by styling, colouring, and environmental stressors. The set begins with No.4 Shampoo, which gently cleanses while restoring moisture and shine. No.5 Conditioner replenishes hydration, detangles, and softens the hair without weighing it down. The No.5 Leave-In Conditioner provides all-day nourishment and heat protection, leaving hair silky and manageable. The No.0 Hair Treatment primes and strengthens hair, amplifying the effects of the full Olaplex routine for maximum repair and resilience. Together, these products create a transformative, salon-quality haircare experience at home. How to Use: Start with No.4 Shampoo, massaging into wet hair and rinsing thoroughly. Follow with No.5 Conditioner, leave on for 3-5 minutes, then rinse. Apply No.0 Hair Treatment to damp hair and leave for 10 minutes before rinsing or following with No.5 Leave-In Conditioner for added hydration and protection. Style as usual. Use as part of a daily or weekly haircare routine depending on hair needs.