The latest innovation in color care, redken's acidic color gloss shampoo is a revolutionary shampoo that extends color and provides salon-like shine. This sulfate-free shampoo provides long-lasting color vibrancy for up to 32 washes* and locks in intense molecular-level shine for up to 76 percent shinier hair**. Use as a complete routine with acidic color gloss activated glass gloss treatment, conditioner and heat protection leave-in treatment.