Olaplex No. 4P Blonde Enhancer Toning Shampoo 250 ml Anti-Yellow is a product capable of neutralizing unwanted yellow tones, strengthening your hair, and making it soft, shiny, and manageable.

The formula of Olaplex No. 4P Blonde Enhancer Toning Shampoo 250 ml Anti-Yellow is sulfate- and paraben-free, contains the exclusive ingredient Bis-Aminopropyl Diglycol Dimaleate, capable of deeply restoring the internal structure and strength of the hair, and is so concentrated that it forms a rich lather capable of increasing the luminosity of your hair after just one use. The longer the application time, the better the final result!

The active ingredient patented by Olaplex makes its products the only ones capable of reconnecting the disulfide bonds broken within the hair as a result of coloring, continuous exposure to chemicals, and mechanical and thermal stress.

By using Olaplex No. 4P Blonde Enhancer Toning Shampoo 250 ml Anti-Yellow, you can complete the hair restructuring process not only during salon treatments but also at home!

Directions for use: Apply to wet hair. Massage well and leave on for 1-3 minutes. Then rinse. For a more intense toning, leave on for up to 5 minutes.

If the hair contains product residue, cleanse first with No. 4 Bond Maintenance Shampoo. Then proceed with Olaplex No. 5 Bond Maintenance Conditioner for light hydration, or use Olaplex No. 8 Bond Intensive Moisture Mask if your hair needs intensive hydration.