5 Week Enriching Hair TreatmentLuxurious Boosting Hair Treatment The 5 Week Enriching Hair Treatment is designed as a complete service. All 5 tubes are designed for a single use application. For most optimum results use as a 5 Week Enriching Hair Treatment to ensure that all new connections within the protein chain are sealed. Luxury Haircare Treatment Regeneration and revitalization within 5 weeks Reconstructs the hair fiber A nourishing hair treatment designed to be used over 5