Redken Extreme Strength Builder fortifying mask for distressed hair provides deep conditioning & strengthens hair from the inside out for increased control & manageability. Interlock Protein Network including key ingredients to rebuild surface protection, provide progressive conditioning & strengthens hair's core. Also
Includes:: a fortifying complex with 18-mea amino acid & protein. 18-MEA helps restore the lipid layer of protection & resurfaces the cuticle to help restore shine while amino acids & protein enter the cuticle for targeted structural repair. Together, IPN & the Fortifying Complex deliver new Extreme's advanced strengthening benefits for healthier, shinier hair.