No.0 Intensive Bond Building Hair Treatment - BenefitsPH balancedFor all hair typesContains OLAPLEX patented bond building technology that rebuilds broken and weakened bondsJump starts repair deep within the hair strandPrimes hair to intensify benefits of No.3OLAPLEX products are thoroughly tested in accordance with industry standards in-house and by independent third-party laboratories for safety and efficacyResearch Results*When used as a two-part system in just one use.Scientifically Proven: 68% more repair & 3x stronger hair*Formulated WithoutSulfatesAldehydesGlutenDEAPhosphatesPhthalatesFormaldehydeParabensNuts - No.0 Intensive Bond Building Hair Treatment