Long-lasting* resurfacing concentrate for damaged hair for the in-salon Rectify protocol. Used in salon-as part of the PRO FIBER Rectify protocol. Applied by the hairdresser before the REGENERATE long-lasting* Care activator, the technical masque, according to a professional layering technique. Ends are instantly smoother and hair is left feeling soft. Resurfacing from the root to the tip, discover the effect of a new hair fiber that is intensely soft, shiny, free-flowing, and light. Hair is repaired* and healthy again.