The Olaplex No. 4C Bond Maintenance Clarifying Shampoo (8.5 fl oz) is a color-safe, deep-cleansing shampoo designed to remove buildup from hard water minerals, chlorine, pollutants, and styling products. Its gentle formula cleanses without stripping essential moisture, making it suitable for all hair types, including color-treated hair. For optimal results, it's recommended to use this shampoo weekly in place of your regular shampoo. Shampoo: A clarifying shampoo that removes damaging impurity buildup from your environment, hair care, and daily life. See volume, softness, shine & color clarity.