Olaplex No.9 Bond Protector Hair Serum by Olaplex is an advanced hair serum designed to repair, protect, and strengthen all hair types. Formulated with Olaplex's patented bond-building technology, it works to reinforce damaged hair bonds, reduce breakage, and restore smoothness, shine, and manageability. This lightweight serum helps shield hair from heat, environmental stressors, and mechanical damage while providing intense hydration. Its nourishing formula leaves hair soft, frizz-free, and visibly healthier without weighing it down, making it ideal for daily use or as part of a professional haircare routine. Perfect for anyone seeking to strengthen, protect, and rejuvenate hair, Olaplex No.9 Bond Protector Hair Serum enhances natural shine, smoothness, and overall hair resilience. How to Apply: Apply a small amount to clean, damp hair, focusing on mid-lengths and ends. Do not rinse. Style as usual.