What it is: Violet Brightening Cleanser Pure NV BKT for toning all shades of Silver, Gray and Blonde. What it does: This cleanser was formulated to maintain the pure NV botanical keratin treatments and brightens and tones shades of silver, gray and blonde hair. What else you need to know: It is safe for all types of hair and does not contain any sodium Chloride, Sulfates or Parabens.