Olaplex Bond Maintenance Clarifying Shampoo No. 4C. Using the exclusive OLAPLEX deep cleansing system, this advanced detox shampoo effectively removes product residues and impurities from hair, helping to create healthier hair. Removes mineral deposits, chlorine, excess sebum and product residues from the 1st application. The innovative formula cleanses hair without drying it out and provides smoothness and vibrant shine. Formulated with patented OLAPLEX Bond-Building Technology™ for strong disulfide bonds. Repairs damaged hair from the inside. Unlike other active ingredients, the original OLAPLEX ingredient does not work from the exterior, but repairs hair from the inside out - by permanently bonding broken disulfide bonds in the hair.