What It Is Banish brass forever with The Perfect Blonde Purple Toning regimen from the brand that knows color! Utilizing a special dye to beautifully tone hair with no sulfates, this duo cleanses, softens and brightens blonde hair like never before. Perfect your blonde and kick brass every time you shampoo! What It Does Eliminate brass and tone blondes while adding strength, shine and elasticity back into the hair with added keratin, wheat and silk amino acids.