As a system of No.3 + No.4 + No.5: 90% smoother, better detangling, more conditioned*** No.3 Hair Perfector: Reverses hair damage in as little as 3 minutes 3X stronger after one use** Reduces breakage by 69%** OLAPLEX No.7 Bonding Oil: 125% increase in shine* 72-hour frizz control and humidity resistance 77% reduction in breakage 450°F/232°C heat protection *Compared to bleached hair without application of OLAPLEX No.7 BONDING OIL **when used with No.4 ***when used as a system of No.3, No.4, No.5 This perfectly giftable routine of four OLAPLEX top sellers will keep any hair type shining with health. Includes a full-sized, shine-boosting OLAPLEX No.7 and a starter-sized No.3, the iconic repair treatment powered by the complete bond builder for immediately stronger, visibly healthier hair. Kit Includes: No.3 Hair Perfector (50 mL / 1.7 fl. oz.) No.4 Bond Maintenance Shampoo (100 mL / 3.3 fl. oz.) No.5 Bond Maintenance Conditioner (100 mL / 3.3 fl. oz.) No.7 Bonding Oil (30 mL / 1 fl. oz.