No.9 Bond Protector Nourishing Hair Serum - BenefitsAnti-staticPatented OLAPLEX Bond Building Technology rebuilds broken and weakened hair bondsAntioxidant-rich Red Algae Extract shields hair from pollutants and neutralizes damaging free radicalsStyle memorySatin shineBounceback curlsOLAPLEX products are thoroughly tested in accordance with industry standards in-house and by independent third-party laboratories for safety and efficacyResearch ResultsScientifically Proven: Shields hair from pollution for 48 hours.Formulated WithoutSulfatesAldehydesSiliconesGlutenPhosphatesFormaldehydeNuts - No.9 Bond Protector Nourishing Hair Serum