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Regular price
$29.83 USD
Regular price
$33.15 USD
Sale price
$29.83 USD
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The best selling OLAPLEX Bond Maintenance Shampoo now comes with a brand new formula designed for blondes. Strengthen & repair while enhancing cool tones with No.4P Blonde Enhancer Toning Shampoo by OLAPLEX.


  • Free From Claims Icons_Alcohol Free.pngAlcohol Free
  • Free From Claims Icons_Paraben Free.pngParaben Free
  • Free From Claims Icons_Cruelty Free.pngCruelty Free
  • Free From Claims Icons_Ammonia Free.pngAmmonia Free
  • Free From Claims Icons_PPD Free.pngPPD Free
  • Free From Claims Icons_Gluten Free.pnGluten Free
  • Free From Claims Icons_Sulphate Free.pngSulphate Free
  • Free From Claims Icons_Silicone Free.pngSilicone Free
  • Sustainable Claims Icons_Vegan.pngVegan

  • New formula designed to neutralise unwanted warmth between salon visits
  • Formulated with OLAPLEX Bond Building chemistry
  • Restores internal strength and moisture levels
  • Adds incredible shine and manageability Suitable for all hair types; especially chemically treated hair
  • Suitable for blondes, balayage, grey and white hair
  • Vegan, colour cafe, pH balanced and cruelty-free
  • Free from parabens, sulphates, phosphates, gluten and nuts


Protect and repair damaged hair and split-ends with the gentle cleansing and reparative OLAPLEX No.4P Blonde Enhancer Toning Shampoo. This brand new formula is designed to neutralise unwanted warmth between salon visits, revealing an evenly cool tone to all blonde hair types. With the ability to strengthen all types of hair, No.4 leaves it shinier and more manageable with every wash. Using the same patented ingredient as the OLAPLEX professional system, Bis-Aminopropyl Diglycol Dimaleate, No.4 works by finding single sulfur hydrogen bonds and cross-linking them back together to form disulfide bonds. Disulfide bonds are broken through chemical procedures such as colouring, thermal interference like heat and UV damage, and mechanical processes like brushing and combing. With this single active ingredient repairing and reinforcing the hair fibre, the result is stronger, healthier hair with enhanced colour longevity and vibrancy. No.4 Bond Maintenance Shampoo works seamlessly with No.5 Bond Maintenance Conditioner and No.3 Hair Perfector as part of the OLAPLEX 3-4-5 regimen for a professional treatment experience at home. OLAPLEX is colour-safe, vegan, pH balanced and completely free from cruelty, DEA, aldehydes, formaldehyde, silicone, parabens, sulphates, phosphates, gluten and nuts. Join the OLAPLEX revolution for a truly one-of-a-kind solution to restoring the natural texture of hair, boosting its elasticity and transforming its health.


The original bond builder, OLAPLEX revolutionised professional colour services with its innovative hair rebuilding system. For professional salon use and ongoing at-home maintenance, hair is healthier, stronger and colour is brighter.

  1. Apply to wet hair.
  2. Lather fully then leave to process for 1-3 minutes. Leave for up to 5 minutes for more intense toning.
  3. Rinse thoroughly, then follow with No.5 Bond Maintenance Conditioner.
  4. Follow with No.8 Intense Moisture Mask for extra hydration.
Tip: Pre-wash with No.5 Bond Maintenance Shampoo to remove product build-up.

Full ingredients

 Water (Aqua/Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Glycerin, Sodium Cocoamphoacetate, Sodium Chloride, Acrylates Copolymer, Betaine, Phenoxyethanol, Fragrance (Parfum), Polyquaternium-7, Bis-Aminopropyl Diglycol Dimaleate, Guar Hydroxypropyltrimonium Chloride, Ethylhexylglycerin, Hexyl Cinnamal, Limonene, Citric Acid, Sodium Benzoate, Acid Violet 43 (Cl 60730)
Disclaimer: The product information provided is accurate to the best of our knowledge. We rely on materials provided to us by our suppliers. For most accurate information please check the packaging of your product.