OLAPLEX No. 3 Hair Perfector is a pre-shampoo treatment designed to repair and strengthen damaged hair from within. As the second step in a two-part system with OLAPLEX No.0 Intensive Bond Building Hair Treatment, it works synergistically to restore broken bonds caused by chemical, thermal, and environmental stressors. Powered by patented bond-building technology, this formula reduces breakage, visibly strengthens hair, and repairs and protects deep within the hair strands. It helps restore a healthy appearance and texture, leaving hair revitalized, resilient, and radiant. Color safe and sulfate-free, this treatment is ideal for all hair types, prepping your strands for shampooing while ensuring lasting strength and shine.