Olaplex's No. 4 Bond Maintenance Shampoo delivers targeted care for dry, damaged, and color-treated hair. This sulfate-free cleanser utilizes advanced bond-building technology to reinforce hair structure, effectively minimizing breakage and split ends.The rich, nourishing formula hydrates deeply, retaining the vibrancy and shine of color-treated hair. Its luxurious, gentle lather enhances manageability, leaving hair smooth and revitalized. Perfect for all hair types, this cruelty-free, gluten-free, and vegan shampoo is both color-safe and pH-balanced. With regular use, hair emerges feeling soft, resilient, and exuding a naturally healthy glow. Size:1oz