REPAIR, STRENGTHENS AND PROTECTS HAIR - Bond Builder Split End Remedy helps protect and strengthen existing bonds and seal split ends. BROKEN MENDS LINKS – This split end remedy instantly seals broken ends for stronger, ibly healthier hair. It forms a shield on the hair, helping to prevent future damage. FOR IBLY HEALTHIER HAIR - This is the first type of split end hair sealer that works both on and under the hair surface for broken bonds and sealing fibers. LASTS UP TO 3 WASHES - With moisturizing ingredients to soften and moisturize, this split end serum helps you achieve a reflective shine. Developed by leading trichologists - Developed with over 60 years of hair and scalp expertise, each product is informed by a thorough understanding of trichology - the scientific study of hair and scalp - and is designed to meet your hair's specific texture, length and level.