Skip to main content

Free Shipping with Every Order

Free Shipping with Every Order

Are you looking for...

Nº.4P BLONDE ENHANCER™ TONING SHAMPOO LITRE

$173 Full item price

Nº.4P BLONDE ENHANCER™ TONING SHAMPOO LITRE

$173 Full item price
Shop Pay Logo
One-click checkout for fast and secure payments
FREE DELUXE SAMPLE WITH EVERY PURCHASE

Stay stocked on Nº.4P with this convenient litre size with a pump. The Nº.4P Blonde Enhancer™ Toning Shampoo, infused with patented OLAPLEX Bond Building Technology®, is a highly concentrated purple shampoo that cleanses, tones and repairs with a sulfate-free formula that neutralizes brassiness and boosts brightness after just one use.

  • Neutralizes unwanted brassiness and yellow tones.
  • Cleanses without stripping and drying.
  • Sulfate free and PH Balanced.
  • Flexible timing allows for a more customizable end result.
  • Scientifically Proven: 3x brighter*

*Compared to top purple shampoos.

  1. Dispense desired amount of product into hands and emulsify.
  2. Apply to wet hair, distributing evenly. Lather fully and leave on 1-3 minutes. Rinse.
  3. For optimal brightening and hydration, use Nº.5P Blonde Enhancer™ Toning Conditioner from roots to ends, or Nº.8 Bond Intense Moisture Mask for extra moisture.

    PRO TIP:
    For more intense toning, leave on hair up to 5 minutes.
All Hair Types

All Hair Types

Cruelty Free

Cruelty Free

Gluten Free

Gluten Free

Nut Free

Nut Free

Paraben Free

Paraben Free

PH Balanced

PH Balanced

Phosphate Free

Phosphate Free

Phthalate Free

Phthalate Free

Vegan

Vegan

Sulfate-Free

Sulfate-Free

PAIRS WELL WITH

WHAT CUSTOMERS ARE SAYING

I absolutely LOVE this product! My hair has not been this blonde with no brass in so long! Plus the product smells amazing!!
Bethany F.
I’ve been using No.4P for about a month and my hair is completely different. It’s stronger, shiny, and my blonde highlights have never looked better. A little bit of this product goRead more about review stating Brittle and dull to strong and healthyes a long way.
Nicole R.
I love how this shampoo doesn't dry out the hair like traditional purple shampoo! Definitely kills all brass and makes my level 10 platinum icy white!
Sara C.

The Original
Bond Builder

The only patented system to noticeably repair
extreme damage—turn dry, brittle
hair into soft, shiny, and more resilient hair.

how it works right

Frequently Asked Questions