Olaplex No.9 Bond Protector Nourishing Hair Serum is a silicone-free hair serum designed to protect hair from pollution and heat up to 232°C (450°F). It is enriched with antioxidant-rich red algae extract and Olaplex's patented technology that helps strengthen hair bonds. The product is designed to make hair soft and shiny, improve style memory and control frizz and static. Suitable for all hair types, this serum promises to leave hair feeling fresh and protected with a residue-free application.

This serum is ideal for use on both wash days and in between washes for added protection. The lightweight, nourishing formula is designed not to weigh hair down, but to provide long-lasting protection from pollution and external aggressors.