The Olaplex No.4P Bond Maintenance Purple Shampoo cleanses and tones while adding hydration and repair to the hair. A highly pigment allows for customizable toning levels so the longer the treatment the brighter the toning results.
Directions For Use: Apply to wet hair. Lather fully & let process 1-3 minutes. Rinse. For more intense toning, leave on up to 5 minutes. Follow with Olaplex N°5 Bond Maintenance Conditioner (sold separately).
Tip: If hair has product build-up, cleanse first with Olaplex N°4 Bond Maintenance Shampoo.