Olaplex
No. 4P Blonde Enhancer™ Toning Shampoo

No. 4P Blonde Enhancer™ Toning Shampoo is rated 4.6 out of 5 by 182.
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No. 4P Blonde Enhancer™ Toning Shampoo
Preview image 1 of No. 4P Blonde Enhancer™ Toning Shampoo
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8.5 oz.
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What It Is

Highly concentrated purple shampoo cleanses, tones, and repairs while keeping hair hydrated from roots to ends. Sulfate-free formula creates a rich lather to neutralize brassiness and boost brightness after one use for all blonde, lightened, and grey hair.

What It Does

• High performance shampoo for salons

• The longer you treat, the brighter the results

• Gentle enough for clients home use

What Else You Need to Know

• Shampoo PH level: 5.8 - 6.2

• Scientifically proven 3x brighter blonde. *Compared to other top purple shampoos

1. Apply to wet hair. Lather fully and let process 1-3 minutes. Rinse. For more intense toning, leave on hair up to 5 minutes.

2. Follow with No.5 BOND MAINTENANCE™ CONDITIONER for lightweight moisture or 4-IN-1 MOISTURE MASK for intense hydration & repair.

*Use as needed to neutralize unwanted yellow tones

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)

Purchases made in SalonCentric stores may be returned to any SalonCentric store. Purchases made through SalonCentric Customer Service, SalonCentric Business Partners, and SalonCentric.com orders Sold and Shipped by SalonCentric may be returned to a SalonCentric store; however, the return must not exceed $450 and must include the original receipt, packing slip, or invoice. For returns in-store of online orders, the refund will be credited back to the original payment method once the return has been processed. For SalonCentric.com Online Exclusive orders sold and shipped by third-party sellers, please see more details linked below for return steps.

The SalonCentric return policy does not currently apply to Kérastase & Shu Uemura purchases. Kérastase & Shu Uemura do not accept returns.

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Rated 5 out of 5 by from Love It brightens hair really well. Nothing else I’ve used is as strong as this
Date published: 2025-06-23
Rated 5 out of 5 by from Love this ! Best purple shampoo, not only remove brassiness but leaves hair feeling clean and healthy
Date published: 2025-04-30
Rated 5 out of 5 by from Fav purple shampoo This shampoo works SO WELL!! Sometimes I don’t even red to tone!! Love love love and a little goes a long way too!
Date published: 2025-03-21
Rated 5 out of 5 by from olaplex purple Best purple shampoo out there for that icy gray tones been using it sense it came out . love that i can leave it on an have lavender hair for a few washes then turns nice an silver
Date published: 2025-01-03
Rated 5 out of 5 by from BLONDES HOLY GRAIL LOVE this for my blondes. 9x out of 10 I never have to tone after using this!!!
Date published: 2025-01-02
Rated 5 out of 5 by from absolute favorite best purple shampoo i’ve ever used hands down
Date published: 2024-12-20
Rated 5 out of 5 by from The best purple shampoo Only purple shampoo I use. Very powerful. Will stain hands and tub, so be careful
Date published: 2024-11-17
Rated 5 out of 5 by from Best toning conditioner! Excellent toning properties with the strengthening power of Olaplex. My clients love this stuff!
Date published: 2024-08-12
Rated 3 out of 5 by from Not my fave from olaplex Definitely not my favorite purple shampoo. I also didn’t feel the silliness to the hair that I wanted to feel like I did in the pulp riot, purple shampoo.
Date published: 2024-07-19
Rated 5 out of 5 by from Best ever This is the best shampoo for blonde hair and I have tried several. if you never have tried this before give it a shot you want regret it ✨
Date published: 2024-07-16
Rated 5 out of 5 by from My Ride or Die Purple Love!! It makes my hair so smooths and pretty and I get so many compliments on my color when I use it!
Date published: 2024-07-06
Rated 4 out of 5 by from OK good purple toning but too much protein on some hair makes it break:/
Date published: 2024-05-30
Rated 5 out of 5 by from Purple shampoo My favorite purple shampoo! Tones very well and not drying on the hair.
Date published: 2024-04-24
Rated 5 out of 5 by from Best blonde shampoo not only do I use on my clients i use this at home as well
Date published: 2024-04-18
Rated 5 out of 5 by from Olaplex Purple Shampoo I love this purple shampoo so much!! Not only does it cancel out those unwanted brassy tones but it also leaves your hair feeling smoothe. Most of the purple shampoos dry your hair out a little I think and this one does not:) 5 stars
Date published: 2024-02-27
Rated 4 out of 5 by from Love it! [Employee of saloncentric] This is one of the best purple shampoos I've tried. I've tried a few others in the past but this the first one I've tried that made a noticeable difference to me.
Date published: 2024-02-07
Rated 5 out of 5 by from Olaplex 4P shampoo Best shampoo for highlighted blond hair. Works exceptionally well on gray hair.
Date published: 2023-10-02
Rated 5 out of 5 by from Love it I really like how effective this shampoo is at keeping my hair the perfect blonde. I do mix a little of no.4 shampoo in since it does leave a little color on my scalp.
Date published: 2023-08-25
Rated 4 out of 5 by from Love the purple I have Grey curly 2C hair and I decided to try the shampoo. I LOVE the purple base, but it does stain your hands. I didn't love that it felt like I was using a clarifying shampoo and for my hair that's not good. I will not be purchasing again
Date published: 2023-01-12
Rated 5 out of 5 by from best purple shampoo 💜 Love this shampoo for blonde, silver, and white hair! I rarely have to tone since this shampoo launched. I seal with clear and that is it! Saves money and time. This shampoo does not leave a rosy hue, is not drying, and gets pretty sudsy too. For some clients, I mix half N4P and half N4.
Date published: 2022-11-15
Rated 1 out of 5 by from Unsellable I bought a few of these they came spilled in my whole box. They are no longer full and everything is purple. They are unsellable as well as everything else.
Date published: 2022-10-19
Rated 5 out of 5 by from Great for aging-dry hair My mother raves about this shampoo. She says when her hair turned grey it became dull and course not shiny and soft as it once was. She started using this and says her hair has never felt better, and I can attest to it looking absolutely amazing!
Date published: 2022-06-05
Rated 5 out of 5 by from Beautiful The purple is very intense I recommend using it sparingly just as you would their regular shampoo.
Date published: 2022-04-21
Rated 5 out of 5 by from Olaplex 4p Game changer ! Beat timing shampoo and pre toner everrrrrrr!
Date published: 2022-03-10
Rated 5 out of 5 by from Blonde ambition Highly pigmented strengthening in one bottle. feed back from clients is a game changer ♡
Date published: 2022-03-08
Rated 4 out of 5 by from Good for Gray Hair I bought this at the recommendation of my stylist. It's a new product and she thought it would be great on my hair to achieve the results I was looking for. It worked pretty well, and I got the results I hoped for.
Date published: 2022-02-15
Rated 1 out of 5 by from Decepcionada con la compra online Horrible el servicio , súper decepcionada, me cobraron la orden y nunca llego… recibí la llamada de un representante explicando que Mi cuenta había sido bloqueada ya que en el año 2020 yo hice una orden que la tienda me envío y no me cobro por problemas de autorizos de las tarjetas , de esto yo no tenia conocimiento y hace 2 años de esta supuesta orden. Y entonces me cogieron mi compra actual para cubrir ese supuesto saldo y nunca recibí productos, súper vergonzoso esto , nunca pensé que sucedería esto…
Date published: 2022-02-06
Rated 4 out of 5 by from Olaplex 4p Deposits a lot of pigment of left on for an extended amount of time.
Date published: 2022-02-02
Rated 5 out of 5 by from Had doubts but it's so good! I just wanted to try this, didn't have high hopes regarding toning. The only purple shampoos that worked for me were the Fanola ones. I have balyage and curly hair, 3A-C and thin as well.. This shampoo worked soooo well at removing the orange as well as the yellow, almost completely... I was and am so shocked, and I love the olaplex bonding benefits as well, a win-win! 14 bucks totally worth a shot.
Date published: 2022-01-29
Rated 5 out of 5 by from amazing! Best purple shampoo I’ve ever used. I’ve never had one work this good!
Date published: 2022-01-22
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