Best for: Natural or colour-treated blonde and grey hair with unwanted yellow tones or brassiness that needs toning, brightening, strengthening and repair.

What is OLAPLEX Nº.4P Blonde Enhancer™ Purple Toning Shampoo?

OLAPLEX Nº.4P Blonde Enhancer™ Purple Toning Shampoo is an ultra-concentrated purple shampoo designed to neutralise unwanted yellow tones and brassiness in natural or colour-treated blonde and grey hair.

The purple toning formula helps even the appearance of hair tone to reveal brighter, shinier colour while repairing everyday damage and strengthening hair for improved resilience.

Its hydrating lather gently cleanses without stripping and helps enhance softness, while OLAPLEX Bond Building Technology helps strengthen and reinforce hair bonds.

OLAPLEX states that Nº.4P can reveal bright, evenly toned, shiny and strong hair in one wash. When used as a system with Nº.5P, it is clinically proven to deliver 4X brighter hair.

Who is it best for?

OLAPLEX Nº.4P Blonde Enhancer™ Purple Toning Shampoo is formulated for:

• natural blonde hair
• colour-treated blonde hair
  
• grey hair
  
• blonde or grey hair with unwanted yellow tones
  
• hair affected by brassiness
  
• dulled shades of blonde that need brightening
  
• fine hair texture
  
• straight hair
  
• wavy hair
  
• curly hair
  
• coily hair
  
• all hair porosity levels
• chemically treated hair
  
• colour-treated hair
  
• hair that needs strengthening alongside toning

OLAPLEX identifies Nº.4P as most ideal for hair colour levels 7 and above.

What problem does it solve?

OLAPLEX Nº.4P combines purple toning with cleansing, strengthening and repair.

Unwanted yellow tones → violet toning agents help neutralise yellow tones and balance hair colour.

Brassiness → concentrated purple pigment helps reduce unwanted brassy tones.

Dull blonde hair → helps brighten blonde colour and enhance shine.

Everyday hair damage → helps repair everyday damage while defending against future breakage.

Hair lacking strength → helps strengthen and reinforce hair bonds for greater resilience.

Concern about purple shampoo drying the hair → the hydrating lather gently cleanses while helping enhance softness.

Benefits

• Purple toning shampoo for blonde and grey hair
  
• Neutralises unwanted yellow tones
  
• Helps reduce brassiness
  
• Helps even the appearance of hair tone
  
• Brightens hair colour
  
• Enhances shine
  
• Repairs everyday damage
  
• Helps defend against future breakage
  
• Strengthens hair
  
• Reinforces hair bonds
  
• Helps improve resilience
  
• Gently cleanses without stripping
  
• Hydrating lather
  
• Helps enhance softness
• Suitable for natural blonde hair
  
• Suitable for colour-treated blonde hair
  
• Suitable for grey hair
  
• Colour-safe
  
• Suitable for chemically treated hair
  
• Dermatologist tested
  
• Vegan
  
• Protein-free
  
• Silicone-free
  
• Sulfate-free
  
• SLS/SLES-free
  
• Phthalate-free
  
• Phosphate-free
  
• MIC/MIT-free
  
• Paraben-free

Key Ingredients

Violet Toning Agents: Help seal in brightness and balance the appearance of hair tone to reduce brassiness and unwanted yellow tones.

Gentle Blend of Coconut Oil-Derived Surfactants: Provides an easy lather while leaving the scalp and hair feeling hydrated.

OLAPLEX Bond Building Technology: The formula contains Bis-Aminopropyl Diglycol Dimaleate and is designed to help strengthen and reinforce hair bonds for stronger, more resilient hair.

How to Use

• Apply a generous amount of OLAPLEX Nº.4P Blonde Enhancer™ Purple Toning
• Shampoo to wet hair.
  
• Lather through the hair.
  
• Allow to process for 2 minutes.
  
• Rinse thoroughly.
  
• Follow with conditioner.

OLAPLEX recommends using Nº.4P 1–2 times per week or as needed.

The formula is highly concentrated, so a little goes a long way.

Why Choose OLAPLEX Nº.4P Blonde Enhancer™ Purple Toning Shampoo?

Product type: Purple toning shampoo
Best for: Blonde & grey hair
Hair colour: Natural or colour-treated blonde + grey
Primary concern: Yellow tones & brassiness
Additional concerns: Dullness + everyday damage
Action: Tones + brightens + cleanses + strengthens + repairs
Hair texture: Fine
Hair pattern: Straight + wavy + curly + coily
Porosity: All porosity levels
Ideal hair colour level: Level 7 and above
Processing time: 2 minutes
Recommended frequency: 1–2 times weekly or as needed
Colour-safe: Yes
Chemically treated hair: Suitable
Protein-free: Yes
Sulfate-free: Yes
Silicone-free: Yes
Vegan: Yes
Brand: OLAPLEX
Size: 250ml

Is OLAPLEX Nº.4P Blonde Enhancer™ Purple Toning Shampoo Right for Me?

Choose Nº.4P if: you have natural or colour-treated blonde or grey hair and want to neutralise unwanted yellow or brassy tones while brightening, strengthening and repairing your hair.

It may also suit you if: your blonde hair has become dull and you want a toning shampoo that combines purple pigment with gentle cleansing, softness, shine and damage repair.

OLAPLEX states that Nº.4P is most ideal for hair colour levels 7 and above.

Frequently Asked Questions

What does OLAPLEX Nº.4P Blonde Enhancer™ Purple Toning Shampoo do?

Nº.4P is a purple shampoo that neutralises unwanted yellow tones and brassiness in natural or colour-treated blonde and grey hair. It also brightens, enhances shine, repairs everyday damage and helps strengthen hair.

Who should use OLAPLEX Nº.4P?

It is designed for natural or colour-treated blonde and grey hair. OLAPLEX states that it is most ideal for hair colour levels 7 and above.

How often should I use OLAPLEX Nº.4P Purple Shampoo?

OLAPLEX recommends using Nº.4P 1–2 times per week or as needed, making it an alternative to your regular shampoo during the washes when toning is required.

How long should I leave OLAPLEX Nº.4P on my hair?

The current OLAPLEX directions recommend lathering Nº.4P into wet hair and allowing it to process for 2 minutes before rinsing.

Will OLAPLEX Nº.4P help brighten blonde highlights?

Yes. OLAPLEX states that Nº.4P can brighten dulled shades of blonde while neutralising unwanted yellow and brassy tones.

Do I need to use my normal shampoo as well as Nº.4P?

No. When you use Nº.4P during a wash, OLAPLEX states that it is not necessary to use a regular shampoo as well.

Does OLAPLEX Nº.4P dry out the hair?

OLAPLEX states that Nº.4P is formulated with conditioning surfactants and will not dry out the hair. Its hydrating lather gently cleanses and helps enhance softness.

Is OLAPLEX Nº.4P suitable for colour-treated or chemically treated hair?

Yes. The formula is colour-safe and suitable for chemically treated hair.

Can OLAPLEX Nº.4P be used on curly hair?

Yes. OLAPLEX states that the formula is suitable for straight, wavy, curly and coily hair with fine texture and across all porosity levels.

Does OLAPLEX Nº.4P contain protein?

No. The current formula is protein-free. It is also free from silicones, sulfates, SLS/SLES, phthalates, phosphates, MIC/MIT and parabens.

Ingredients

Aqua (Water, Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Glycerin, Sodium Chloride, Sodium Cocoamphoacetate, Acrylates Copolymer, Bis-Aminopropyl Diglycol Dimaleate, Betaine, Polyquaternium-7, Guar Hydroxypropyltrimonium Chloride, Ethylhexylglycerin, Parfum (Fragrance), Citric Acid, Phenoxyethanol, Menthol, Citrus Aurantium Peel Oil, Limonene, Hexyl Cinnamal, Sodium Benzoate, CI 60730 (Ext. Violet 2), CI 19140 (Yellow 5), CI 15985 (Yellow 6).

OLAPLEX advises that ingredients are subject to change. For the most current ingredient list, check the packaging of the product received.

Safety Information

• This product contains ingredients that may cause skin irritation in certain individuals. OLAPLEX recommends carrying out a preliminary patch test.
• Apply a small amount to the inside of the elbow or behind the ear and wait 48 hours. Do not use if irritation occurs.
• Wear gloves during application.
• Do not use to dye eyelashes or eyebrows.
• Avoid contact with eyes. If contact occurs, rinse immediately.