Redken\'s Color Extend Graydiant Purple Shampoo brightens and nourishes gray, silver, light blonde hair & light blonde color treated hair. This anti-yellow shampoo is a hair toner that instantly neutralizes brassy hair for a more radiant hair color. Formulated with customized violet pigments & Citric Acid, this shampoo strengthens and transforms gray, silver and light blonde hair for strands to become stronger* with increased softness and shine. *when you use Graydiant Shampoo and Conditioner as a system