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
Date published: 2026-06-12
Rated 5 out of 5 by from Hydrates & tones I love the original shampoo so I was inclined to try this purple toning one when I got highlights. Its hydrating and cancels it the warmth that my highlights start to go over time.
Date published: 2026-05-24
Rated 5 out of 5 by from 10/10 Absolutely love this product, recommend to all my blonde clients
Date published: 2026-04-23
Rated 1 out of 5 by from Made my hair grey/purple tint Although I like Olaplex shampoo, this was not what I expected. This one might have some timer in it, because it stained my hands purple & when my hair dried, the color was horrible. It was this ashy, purple, almost grey color. I was devastated, so I bought the Olaplex purifying shampoo to hopefully remove it. It helped, but my light golden highlights were ruined IMHO. Lucky for me I had an appointment the next weekend for my friend to refresh my highlights. She updated my style and made my hair even better.
Date published: 2026-01-11
Rated 5 out of 5 by from Great purple shampoo! Great product! Tones out yellow, does not over tone, and doesn't dry out hair.
Date published: 2026-01-07
Rated 5 out of 5 by from Great shampoo This shampoo really is pigmented and tones unwanted yellow and brassy hair.
Date published: 2025-12-23
Rated 5 out of 5 by from Must have for blondes This is the BEST brightening shampoo for blondes! Keeps their hair super blonde and bright between appointments. I use on the back bar for a nice refresh and for clients that don’t need toner.
Date published: 2025-11-26
Rated 5 out of 5 by from My purple shampoo GO-TO My absolute favorite purple shampoo of all time. It does not leave the hair dry, like the typical purple shampoos do.
Date published: 2025-08-12
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