Combat daily damage overnight with this 24/7 repair serum from Redken. Powered by citric acid, this formula penetrates up to 7 layers deep to strengthen hair from within. Enriched with a high concentration of polyglutamic acid, it clings to the hair for long-lasting protection and intensive repair. This overnight bonding serum works continuously to restore and fortify hair around the clock. Ideal for clients with chemically processed or damaged hair seeking overnight repair and daily strengthening.