Protect and repair damaged hair, split ends and frizz with the Olaplex No. 4 Bond Maintenance Shampoo! The highly moisturizing, reparative shampoo leaves hair easy to manage, shiny, and healthier with each use!

This Bond Maintenance moisturizing and reparative shampoo is formulated with Olaplex Bond Building chemistry. It is color-safe, leaves hair stronger than ever, and benefits all hair types and textures.

N°4 Shampoo repairs and protects hair from everyday stresses - including damaged hair, split ends, and frizz - by re-linking broken bonds. Leaves hair easier to manage, shinier and healthier with each use. N°4 is color-safe and proven to reduce breakage and strengthen all types of hair.

Olaplex is the first and only patented technology which relinks disulfide bonds in hair damaged by chemical (color, bleach, perms), thermal, and mechanical styling!