Olaplex No. 4 Bond Maintenance Shampoo

A highly-nourishing and reparative shampoo. N°4 Shampoo repairs and protects hair from everyday stresses — including damaged hair, split ends, and frizz — by re-linking broken bonds. Leaves hair easier to manage, shinier and healthier with each use. N°4 is color-safe and proven to reduce breakage and strengthen all types of hair. Formulated without:  Parabens  Sulfates  Phthalates Treat hair with Olaplex No. 3. Apply and massage product throughout hair. Rinse product from hair. Follow with Olaplex No. 5 Bond Maintenance™ Conditioner.