Olaplex No.9 Bond Protector Heat Protection & Frizz Reduction Nourishing Hair Serum Size: Full size 3 fl oz Brand new, unopened Batch code shown in photos A weightless, antioxidant-rich, silicone-free hair serum to protect from tangles, breakage, static, and future damage by nourishing hair, blocking pollutants, neutralizing free radicals, and providing heat protection up to 450°F. All hair types.