Olaplex N° 4 Bond Maintenance Shampoo is a revolutionary product that repairs and strengthens hair while gently cleansing. Designed with Olaplex's innovative Bond Building technology, it restores and hydrates hair, particularly beneficial for those who have undergone chemical treatments. Free from sulfates and parabens, it leaves hair feeling smoother, more manageable, and healthier, with a luxurious scent and a formula that helps reduce frizz and improve overall hair resilience.