My white hair turned cool bright white, blending flawlessly with my skin tone—three compliments in a week! Strong purple formula delivers salon-quality results.
This shampoo turned my yellowish white hair into stunning icy brightness that harmonizes with my complexion. Noticed visible toning from the first wash—received three genuine compliments within days. The rich purple pigment works without overdrying. 10/10
This is a review from Amazon.com about product:
Olaplex No. 4P Blonde Enhancer Purple Toning Shampoo, Repairs, Hydrates, & Brightens All Blonde, Lightened, & Grey Hair, 8.5 fl oz

This made such a difference for my white hair! It went from warm to bright white and looks better with my skin. I have gotten three compliments on my hair since I started using the shampoo this week! As other users have commented, it is strong and I swear that I see a hint of purple, but whatever... It looks great! Highly recommend. Worth the money.
Shampoo Basics & Tips
How Purple Shampoo Neutralizes Yellow Tones
Purple shampoo contains violet pigments that counteract yellow/brassy tones through color theory. The color wheel shows purple (opposite yellow) neutralizes warm undertones, creating cooler hair shades. This explains the reviewer's "bright white" transformation.
Why Strong Formulas Matter for Gray/White Hair
Mature hair tends to be more porous, absorbing pigments faster. A "strong" formula (higher dye concentration) ensures effective toning. However, the user's "hint of purple" comment suggests brief application time prevents over-toning.
Skin Tone Harmony Achieved
Cool-toned hair (bright white) complements cooler skin undertones, while warm hues clash. The shampoo helped the reviewer achieve color harmony, evidenced by increased compliments about their overall appearance.
Economic Value of Professional Results
Compared to salon toning treatments ($80+ per session), quality purple shampoo ($15-$30) offers similar results with weekly use. The "worth the money" endorsement reflects this cost-benefit analysis.
After one month, my shampoo reduced hair fall and boosted hair health.
I used this shampoo for a month and saw less hair fall; now my hair is healthier and stronger with improved daily manageability and shine.
I tried this shampoo for extensions; it's okay but the thick conditioner is hard to use.
I initially thought this hair care was great for extensions, but I prefer Olaplex more; the shampoo is okay, yet the thick conditioner is hard to get out, needing a push pump design.
I love how this shampoo smells amazing, lathers richly, saves product, and may help hair grow.
This shampoo has won me over with its amazing scent and rich lather that requires minimal product, saving money, and I remain optimistic about potential hair growth benefits in the near future.
I love how this shampoo soothes my itchy scalp and cleans my fine hair without drying it out.
I never realized my scalp was itchy until I tried this shampoo, which quickly eased discomfort. It cleans effectively without heavy foam, suits my fine, greasy-prone hair, and smells amazing without causing dryness or buildup.
I loved the hand soap but the refill lacks richness and lather, though scent is good.
I expected the refill to match the bottles' quality. It's less rich, lathers poorly, but scent is good. Overall, mediocre.
I used this shampoo and it fixed my hair breakage, allowing healthy growth in just one month.
My hair used to break after half an inch, but this shampoo stopped that and promoted growth. Despite family history of thinning hair, it now grows well, but I dislike the inconsistent packaging sometimes.
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I love how this shampoo reduces hair fall, smells fantastic, and improves my hair health.
I'm amazed: this shampoo cut hair loss and frizz, hair is soft.
With this shampoo, my hair stays oil-free and my scalp feels hydrated daily.
I achieved silky soft hair with this shampoo despite hard water challenges.
I highly recommend this shampoo as it transformed my fragile, breakage-prone hair.
This shampoo leaves my hair soft and smells wonderful; I'd buy it.
I gained incredible volume and fuller-looking hair with this shampoo after proper use.
I love how this shampoo makes my hair silky smooth and soft.
My hair stays healthy with this conditioner, scalp feels great, fragrance pleasant.
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