Olaplex No. 9 Bond Protector Nourishing Hair Serum is a multi-benefit healthy hair serum, powered by OLAPLEX® technology. OLAPLEX® No.9 BOND PROTECTOR NOURISHING HAIR SERUM is a silicone-free, weightless, antioxidant-rich serum that enhances any hair routine to protect & perfect all hair types and textures. WHY YOU NEED IT: Pollution damages our hair everyday, leaving it dull, lifeless, difficult to style and ultimately resulting in broken bonds. No.9 is packed with antioxidants to neutralize free radicals, act as a shield against pollution, guard the hair from breakage and protect against heat styling. HOW ITS DIFFERENT: No.9 is a multi-benefit power player, offering immediately visible benefits while protecting the hair. Satin shine & soft-touch Anti-static & frizz control Detangling & faster blow dry Bounceback memory Curl & wave retention