Designed to be used weekly in place of your regular shampoo, the Olaplex No.4C Bond Maintenance Clarifying Shampoo delivers a deep cleanse to remove impurities, build-up & pollutants from your hair. The formula uses an advanced broad-spectrum clarifying system to remove a wide array of impurities, including hard water minerals, chlorine, heavy metals & product build-up, while resisting stripping or drying out hair. Supported by patented Bond Building Technology™, the shampoo leaves hair feeling touchably soft & optimally prepped for the next steps in your Olaplex routine. Suitable for all hair types. Vegan & cruelty-free.