Bosley Defense Volumizing Conditioner for Normal to Fine / Color-Treated Hair is a Weightless conditioner for the hair and scalp. Infuses weightless body and shine onto the hair and scalp while adding thickness and volume as it fortifies the hair shaft. Kelp extract helps protect from photo aging, frequent washing and damage due to brushing. Contains LifeXtend technology to help stimulate production of root strengthening keratin protein. Extends longevity of hair color.