Olaplex No. 2 is a professional hair treatment designed to restore and strengthen damaged hair. It is typically used in salons after the initial application of Olaplex No. 1, which helps to rebuild broken bonds in the hair structure. This second step further enhances the results, ensuring that the hair remains healthy and resilient. The product works by reconnecting disulfide bonds that can be broken during chemical processes like coloring or bleaching. Olaplex No. 2 is suitable for all hair types and can be used as a standalone treatment or as part of a comprehensive hair care regimen to improve overall hair health.