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.
I love this shampoo for my dry sensitive scalp and color-treated hair.
I love how this shampoo treats my dry sensitive scalp and preserves my color-treated hair, making it soft and shiny.
I love how this shampoo untangles my hair and adds shine, boosting my confidence daily.
I absolutely adore this shampoo because it makes my hair tangle-free and shiny, and people constantly ask me about my routine, making me feel more confident.
I find this vegan shampoo lightweight, rinses clean, and lathers nicely for healthy hair.
I choose this shampoo because it's vegan, free of junk, lightweight, rinses well, and lathers nicely, ensuring my hair stays clean and healthy without any build-up or irritation.
I enjoy the clear, sticky shampoo that moisturizes and smells like roses.
This shampoo moisturizes my thick hair; I like its sticky texture, clear formula without dyes, and floral rose scent.
After using this shampoo, my hair feels clean, moisturized, and not greasy.
This shampoo keeps my colored hair clean and moisturized without grease, and I find it ideal for my highlights with minimal usage required for great results.
My shampoo arrived unsealed, leaking, with a thick texture and odd smell.
After buying shampoo and conditioner, I discovered they were unsealed and leaking, with thick texture and Surface-like smell, warning others.
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Doubtful at first, I see shampoo results after four weeks of daily use, planning conditioner next.
This shampoo transformed my fine hair with amazing volume and noticeable daily difference.
This pure shampoo cleans deeply, leaves hair soft and shiny, and soothes my itchy scalp perfectly.
I transformed my brittle, color-treated hair to smooth health with this shampoo combo fast.
This shampoo saved my dry hair after moving west, though breakage persisted. Better than most!
I love this long-lasting dry shampoo that doesn't dry out my hair even with frequent weekly use.
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