Olaplex No.4P

Blonde Enchancer Toning Shampoo Repairs, Hydrates & Brightens all blondes, lightened and grey hair. Infused with patented Olaplex Bonding building technology, this customizable toning shampoo strengthens, softens and neutralized unwanted yellow tones for brighter, more manageable hair.  How to use: Apply to wet hair. Lather fully and let process 1-3 minutes. Rinse. For more intense toning, leave on hair up to 5 minutes. Follow with No.5 Bond Maintenance for everyday moisture.