Health & Beauty > Hair > Treatment.Brand : Olaplex.Olaplex No.9 Bond Protector Nourishing Hair Serum 0.68 oz.The No.9 Bond Protector Nourishing Hair Serum, infused with patented OLAPLEX Bond Building Technology, is a silicone-free antioxidant hair serum that instantly shields hair from pollution and protects against heat damage while adding satin shine and reducing static and tangles.Neutralizes free radicals and protects against pollution for up to 48 hours.Improves style memory and bounceback curls.Provides Heat protection up to 450F (232C) for a satin shine look.Reduces tangles and static.Silicone free, Sulfate free and PH balanced.How to useApply 1/2 pump from mid-shaft to ends on damp, towel-dried hair, working upward from ends to roots.Follow with your favorite OLAPLEX styling products, or, style as you normally would.Use as the first step in your styling routine.