Gold Series Hair Repair Collection from Gold Series allows helps you to restore and rebuild damaged hair from within while improving your overall hair health in a few easy steps. The Biotin and Kukui nut oil infused formula strengthens and provides deep moisture leaving your hair healthy, shiny and strong. Reduces breakage by 50% for 2X stronger hair. The Gold Series Hair Repair Reconstructing Mask penetrates dry, damaged hair to help reconstruct flexibility of the hair shaft in one treatment.