Nº.4P BLONDE ENHANCER™ PURPLE TONING SHAMPOO LITRE

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A one-liter bottle of Olaplex No. 4P Blonde Enhancer Purple Toning Shampoo with a pump dispenser, centered against a clean white background.
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hover A textured, abstract splash of vibrant purple toning shampoo showing rich lather and fine bubbles, centered against a clean white background.
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A close-up profile view of a woman with long, wavy, bright platinum-silver hair against a clean cream background. Bold black text in the bottom left corner reads: "TONES, STRENGTHENS, AND REPAIRS FOR BRIGHTER, STRONGER BLONDES AND GRAYS.
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An up-close view of a light purple Olaplex bottle tilted downward, dispensing a glossy, thick puddle of vibrant purple toning shampoo with tiny air bubbles onto a clean white background.
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A split-screen before and after comparison of a person's long, wavy hair from behind, divided by a vertical red line. The left half shows brassy, yellow-toned blonde hair labeled "BEFORE." The right half shows bright, cool-toned platinum blonde hair labeled "AFTER." In the bottom left corner, small text reads "UNRETOUCHED IMAGES*.
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A split-screen before and after comparison of a person's curly blonde hair from behind, divided by a vertical red line. The left half shows frizzy, brassy blonde curls labeled "BEFORE." The right half shows bright, well-defined, and toned platinum blonde curls labeled "AFTER." Small text in the bottom left corner reads "UNRETOUCHED IMAGES*".
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A split-screen before and after comparison of a person's hair from behind. The left half shows warm, brassy blonde hair labeled "BEFORE." The right half shows cool, bright platinum blonde hair labeled "AFTER."
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Olaplex infographic titled "Say Goodbye to Brass" on a light background. It features two purple-tinted, one-liter bottles side-by-side with black pump dispensers. A line points from the left bottle, No. 4P Purple Toning Shampoo, to the text "Brighten + Strengthen." A second line points from the right bottle, No. 5P Purple Toning Conditioner, to the text "Tone + Smooth.
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An Olaplex infographic titled "New Design. Proven Results." comparing two purple toning shampoo bottles against a white background. On the left, a bottle labeled "ORIGINAL" shows the bottom half of the classic white Olaplex No. 4P design. On the right, a bottle labeled "NEW LOOK" showcases the updated all-purple packaging design for No. 4P Blonde Enhancer Purple Toning Shampoo
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Olaplex ingredient infographic titled "Because Your Hair Deserves the Best." A list under "FREE OF" highlights that the product contains no Sulfates, Silicones, Phthalates, Phosphates, Parabens, MIC/MIT, or Protein. A list under "ALWAYS" features plus signs next to benefits: Color Safe, Stylist & Dermatologist Tested, Vegan, and Extension Safe.
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A one-liter bottle of Olaplex No. 4P Blonde Enhancer Purple Toning Shampoo with a pump dispenser, centered against a clean white background. hover A textured, abstract splash of vibrant purple toning shampoo showing rich lather and fine bubbles, centered against a clean white background.
A close-up profile view of a woman with long, wavy, bright platinum-silver hair against a clean cream background. Bold black text in the bottom left corner reads: "TONES, STRENGTHENS, AND REPAIRS FOR BRIGHTER, STRONGER BLONDES AND GRAYS.
An up-close view of a light purple Olaplex bottle tilted downward, dispensing a glossy, thick puddle of vibrant purple toning shampoo with tiny air bubbles onto a clean white background.
A split-screen before and after comparison of a person's long, wavy hair from behind, divided by a vertical red line. The left half shows brassy, yellow-toned blonde hair labeled "BEFORE." The right half shows bright, cool-toned platinum blonde hair labeled "AFTER." In the bottom left corner, small text reads "UNRETOUCHED IMAGES*.
A split-screen before and after comparison of a person's curly blonde hair from behind, divided by a vertical red line. The left half shows frizzy, brassy blonde curls labeled "BEFORE." The right half shows bright, well-defined, and toned platinum blonde curls labeled "AFTER." Small text in the bottom left corner reads "UNRETOUCHED IMAGES*".
A split-screen before and after comparison of a person's hair from behind. The left half shows warm, brassy blonde hair labeled "BEFORE." The right half shows cool, bright platinum blonde hair labeled "AFTER."
Olaplex infographic titled "Say Goodbye to Brass" on a light background. It features two purple-tinted, one-liter bottles side-by-side with black pump dispensers. A line points from the left bottle, No. 4P Purple Toning Shampoo, to the text "Brighten + Strengthen." A second line points from the right bottle, No. 5P Purple Toning Conditioner, to the text "Tone + Smooth.
An Olaplex infographic titled "New Design. Proven Results." comparing two purple toning shampoo bottles against a white background. On the left, a bottle labeled "ORIGINAL" shows the bottom half of the classic white Olaplex No. 4P design. On the right, a bottle labeled "NEW LOOK" showcases the updated all-purple packaging design for No. 4P Blonde Enhancer Purple Toning Shampoo
Olaplex ingredient infographic titled "Because Your Hair Deserves the Best." A list under "FREE OF" highlights that the product contains no Sulfates, Silicones, Phthalates, Phosphates, Parabens, MIC/MIT, or Protein. A list under "ALWAYS" features plus signs next to benefits: Color Safe, Stylist & Dermatologist Tested, Vegan, and Extension Safe.

A purple toning shampoo for blondes and greys that neutralises brassiness and repairs everyday damage to reveal bright, evenly toned, shiny, and strong hair in 1 wash.

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Key Benefits

  • Brightens hair colour and enhances shine
  • Neutralises unwanted yellow tones & brassiness
  • Repairs everyday damage and defends against future breakage
  • Strengthens and reinforces bonds for more resilient hair
  • Gently cleanses without stripping
  • Dermatologist tested, vegan, colour-safe, and suitable for chemically treated hair

Powerful Results

*Compared to top purple shampoos.

Powerful Results

**Based on an independent consumer perception study of 60 women with bleached/color-treated blonde hair.

Powerful Results

***After 1 use when used as a system, clinically tested.

Results With One Use

BEFORE BEFORE AFTER AFTER

Unretouched Images*

*Results may vary.

Results achieved by cleansing with N°.4P Blonde Enhancer™ Toning Shampoo, conditioning with N°.5P Blonde Enhancer™ Toning Conditioner, and applying N°.9 Bond Protector Nourishing Hair Serum to damp hair before styling.

Frequently Asked Questions