Redken's Color Extend Brownlights Blue Shampoo is a color-depositing, sulfate-free shampoo for natural or color treated brown hair. This hair toner is a blue shampoo that is ideal for color correcting and neutralizing brassy tones on natural and highlighted brown hair, and is great for brunettes with gray coverage. Formulated with Citric Acid & Vegetable Protein, this sulfate-free shampoo gently cleanses your hair without stripping color and helps prolong cool brunette color. Brand Story Redken is the #1 professional brand in North America. Powered by science, prescribed by professionals, Redken creates products with the highest quality ingredients, delivering powerful hair transformations for all hair types.