Olaplex No. 4 Bond Maintenance Shampoo - Best for Damaged Hair Repair

Professional-grade bond-rebuilding shampoo that repairs damage from coloring, heat styling, and chemical treatments while gently cleansing.
- +Repairs broken protein bonds
- +Sulfate-free yet lathers well
- +Leaves hair soft and smooth
- -Requires follow-up conditioner
- -Not the most hydrating formula
- -Higher price point for smaller bottle
Olaplex No. 4 Bond Maintenance Shampoo has become a staple for those with damaged hair, particularly for individuals with chemically treated or heat-styled hair. The shampoo's patented bond-building technology works at the molecular level to repair broken disulfide bonds in the hair structure. Unlike many reparative shampoos that simply coat the hair, Olaplex actually rebuilds the hair's internal structure for lasting results. The sulfate-free formula creates a satisfying lather that effectively removes buildup without causing additional damage. Users report noticeable improvements in hair texture and reduced breakage after consistent use.
The shampoo is particularly effective when used in conjunction with other Olaplex treatments, though it performs well as a standalone product. While it cleanses thoroughly, some users with very dry hair may need to follow with a rich conditioner. The fresh, clean scent is subtle and doesn't linger. Available in sizes from 3.3oz to 17.75oz, this shampoo is recommended by stylists worldwide for its ability to transform damaged hair into healthier-looking strands with improved elasticity and shine.