Olaplex No.4P Blonde Enhancer Toning Shampoo

Details: Unbreakable Blondes Highly concentrated purple shampoo cleanses, tones, and repairs while keeping hair hydrated from roots to ends. Sulfate-free formula creates a rich lather to neutralize brassiness and boost brightness after one use for all blonde, lightened, and grey hair. Scientifically Proven: 3x Brighter* *Compared to top purple shampoos *No Parabens, No Sulfates, No Phthalates Which hair type is it good for? All blonde, lightened, and grey hair. Benefits: Repairs and maintains bonds within the hair  Eliminates frizz and flyaways  Reduces breakage  When yo use: 2-3 times per week or as often as needed to neutralize unwanted brassiness. How to use:  Treat hair with Olaplex No. 3 (sold separately).  Apply and massage product throughout hair.  Rinse product from hair.  Follow with Olaplex No. 4 Bond Maintenance™ Conditioner (sold separately).