Olaplex No. 4 Bond Maintenance Shampoo is a highly concentrated, reparative cleansing treatment designed to repair and protect hair from everyday stresses. It uses patented Bond Building technology to relink broken disulfide bonds, improving hair health, strength, and integrity.Repairs and Protects: Targets broken bonds caused by chemical treatments, heat styling, and environmental factors to reduce breakage and split ends.

Moisturises and Strengthens: Provides intense hydration and reinforces the internal structure of all hair types.

Enhances Appearance: Clinically proven to boost shine, smooth frizz, and improve overall manageability.

Safe Formulation: It is sulfate-free, paraben-free, gluten-free, vegan, and safe for color-treated hair.

Emulsify: Dispense a small amount and rub it between your hands to create a rich lather.
Apply: Massage into wet hair, focusing on the scalp and working through to the ends.
Rinse: Rinse thoroughly and follow with Olaplex No. 5 Bond Maintenance Conditioner for best results