L'Oréal Paris Elvive Bond Repair Leave-In Hair Serum is the final step in the Bond Repair haircare routine, designed to provide maximum strength, shine, and heat protection for damaged hair. This serum works to rebuild and repair hair bonds, which can break due to brushing, bleaching, styling, and heat treatments. Powered by the Citric Acid Complex, it targets damaged areas to restore hair’s structure and strength, leaving it up to 98% stronger, with 12x fewer split ends, and 82% more shine. Suitable for all types of damaged hair, this leave-in serum ensures your hair is left looking healthier, shinier, and more resilient.