Olaplex No.4 Bond Maintenance Shampoo

OLAPLEX No.4 Bond Maintenance Shampoo (8.5 oz) is a highly concentrated, strengthening and hydrating hair repair shampoo for all hair types, including color-treated and bleached hair. It repairs everyday damage at a molecular level, strengthens and reinforces bonds for more resilient hair, and defends against future breakage, while replenishing hydration to enhance softness and shine and smooth and reduce frizz. Clinically proven in one wash, with a 73% increase in hydration when used as a system with No.5. A little goes a long way: dispense and emulsify in hands, apply to wet hair, lather thoroughly, and rinse well, then follow with No.5 Bond Maintenance Conditioner.