Skip to main content

Free Delivery with Every Order

Free Delivery with Every Order

Are you looking for...
Nº.4 BOND MAINTENANCE® SHAMPOO

Nº.4 BOND MAINTENANCE® SHAMPOO

Current Price is $54.00
Nº.5 BOND MAINTENANCE® CONDITIONER

Nº.5 BOND MAINTENANCE® CONDITIONER

Current Price is $54.00
OLAPLEX Nº.7 BONDING OIL

OLAPLEX Nº.7 BONDING OIL

Current Price is $54.00
Nº.3 HAIR PERFECTOR™

Nº.3 HAIR PERFECTOR™

Current Price is $54.00
Nº.6 BOND SMOOTHER®

Nº.6 BOND SMOOTHER®

Current Price is $54.00
Nº.5 LEAVE-IN MOISTURIZE & MEND LEAVE-IN CONDITIONER

Nº.5 LEAVE-IN MOISTURIZE & MEND LEAVE-IN CONDITIONER

Current Price is $58.00

Nº.4P BLONDE ENHANCER™ TONING SHAMPOO

$54 Full item price

Nº.4P BLONDE ENHANCER™ TONING SHAMPOO

$54 Full item price
Shop Pay Logo
One-click checkout for fast and secure payments
FREE DELUXE SAMPLE WITH EVERY PURCHASE

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. Distribute evenly between palms first.
  2. Apply to wet hair and lather fully.
  3. Leave on for 1-3 minutes. (For more intense toning, leave on up to 5 minutes.)
  4. Rinse well and condition. For optimal brightening and hydration, use Nº.5P Blonde Enhancer™ Toning Conditioner from roots to ends.
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