OLAPLEX Nº.4P Blonde Enhancer Purple Toning Shampoo 250ml

Keep blonde, highlighted and grey hair bright, cool and fresh between salon appointments with OLAPLEX Nº.4P Blonde Enhancer Purple Toning Shampoo. This ultra-concentrated purple shampoo combines powerful violet toning pigments with OLAPLEX bond-building technology to neutralize unwanted yellow and brassy tones while helping strengthen and repair everyday hair damage.

Ideal when blonde hair starts looking yellow, warm or dull, Nº.4P helps restore a cleaner, more evenly toned blonde without further bleaching or lightening. Its hydrating lather gently cleanses without stripping, helping maintain softness and shine while reinforcing hair that may already be vulnerable from coloring, highlights or chemical lightening.

When used together with OLAPLEX Nº.5P Blonde Enhancer Purple Toning Conditioner, OLAPLEX reports 4x brighter and 4x less brassy hair under its specified clinical testing conditions.

Tone → Neutralize Brassiness → Brighten → Strengthen → Repair

Why You'll Love It

• Neutralizes unwanted yellow and brassy tones
• Brightens blonde, bleached, highlighted and grey hair
• Helps restore a cleaner, cooler-looking blonde
• Enhances shine and softness
• Strengthens and reinforces hair bonds
• Helps repair everyday damage
• Helps defend against future breakage
• Gently cleanses without stripping
• Highly concentrated formula
• Color-safe and suitable for chemically treated hair
• Sulfate-free, silicone-free and protein-free
• Vegan and dermatologist tested

What Does OLAPLEX Nº.4P Do?

OLAPLEX Nº.4P is designed to solve one of the most common problems with blonde and grey hair: unwanted yellow or brassy tones appearing between salon appointments.

Its concentrated violet pigments visually neutralize yellow tones, helping blonde, highlighted and grey hair appear brighter and more balanced. At the same time, OLAPLEX's bond-building technology helps strengthen the hair and repair everyday damage.

Unlike bleach, Nº.4P does not lighten the hair. It tones the blonde you already have, helping restore a cooler, fresher appearance.

Who Is It For?

Ideal for:

• Natural or color-treated blonde hair
• Bleached and lightened hair
• Blonde highlights and balayage
• Grey and silver hair
• Blonde hair becoming yellow or brassy
• Dull blonde hair that has lost brightness
• Chemically treated blonde hair
• Blonde hair needing both toning and strengthening

OLAPLEX says Nº.4P is most suitable for hair levels 7 and above, and it can also be used on highlighted sections of brunette hair.

Pair Me With

For maximum toning and brightening, follow with OLAPLEX Nº.5P Blonde Enhancer Purple Toning Conditioner.

The published 4x brighter and 4x less brassy results are based on Nº.4P and Nº.5P being used together as a system.

For blonde hair that is also significantly damaged from bleaching, OLAPLEX recommends incorporating Nº.3PLUS Complete Repair Pre-Shampoo Treatment weekly for more intensive damage repair.

My Blonde Hair Is Turning Yellow or Brassy – What Should I Use?

If blonde, bleached or highlighted hair is becoming yellow or brassy, a purple toning shampoo can help neutralize the unwanted warmth without bleaching the hair again.

Nº.4P uses concentrated violet pigments to counter unwanted yellow tones while helping brighten dull blonde. This makes it particularly useful between salon appointments when highlights, balayage or an all-over blonde begin losing their cooler tone.

If the hair is distinctly orange rather than yellow, however, purple shampoo may not be the correct color-correction solution.

My Bleached Hair Is Brassy and Damaged – What Should I Use?

Bleached hair often has two problems at the same time: unwanted brassiness and damage from chemical processing.

Nº.4P is particularly useful in this situation because it doesn't focus only on color correction. OLAPLEX combines violet toning pigments with its bond-building technology to help strengthen, repair everyday damage and defend against future breakage while toning.

For severely dry, brittle or breaking bleached hair, Nº.4P should form part of a broader repair routine rather than replacing a dedicated treatment or mask.

Will Purple Shampoo Turn My Blonde Hair Purple?

It can temporarily leave a violet cast if very light or porous hair absorbs too much pigment.

This is particularly relevant because Nº.4P is highly concentrated. OLAPLEX confirms that the longer it remains on the hair, the more pigment is deposited. Very light or porous blonde hair should therefore start with the recommended processing time rather than leaving the shampoo on excessively long.

Nº.4P Blonde Enhancer™ Purple Toning Shampoo- OLAPLEX Inc.

A little goes a long way with this highly concentrated formula.


250mL: Up to 100 applications*
1000mL: Up to 400 applications*


*Based on the average application size of 2.5mL

Apply a generous amount to wet hair.
Lather. Allow to process for 2 minutes.
Rinse.
For best results, follow with Nº.5P Blonde Enhancer™ Purple Toning Conditioner

This product contains ingredients that may cause skin irritation on certain individuals, and a preliminary test according to the accompanying directions should first be made. This product may not be used for dyeing of eyelashes or eyebrows; to do so may cause blindness. Avoid contact with eyes. In case of contact with eyes, rinse immediately.

Patch test: apply a small amount of the product on the inside of your elbow or behind the ear and wait for 48 hours. Do not use if irritation occurs. Wear gloves.

FREE OF

Protein, Silicones, Sulfates, SLS/SLES, Phthalates, Phosphates, MIC/MIT, and Parabens

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).

Ingredients are subject to change. For the most current ingredient list, please consult the product packaging of the item you received.