Interlock Protein NetworkTM combines with a powerful Fortifying Complex to restore internal strength, rebuild surface protection and help prevent breakage on distressed hair.

Provides deep conditioning and strengthens hair from the inside out for increased control and manageability.

Tip: When hair is damaged, cuticle fibers stand up away from the hair shaft making hair dull and frizzy. Deep conditioning with Strength Builder will help smooth and flatten the cuticle layers replenishing protein without build-up for hair that has smoother, shiner, healthier appearance.