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 trying many, I love this shampoo for silky, shiny, no-itch hair.
After testing various products, I found the perfect shampoo. It leaves my hair silky, shiny, and itch-free. I will repurchase.
This shampoo works wonders on my hair, yet the bottle was not full.
I have always trusted this shampoo for its quality results, however my latest purchase came incomplete, which negatively impacted my overall satisfaction and usage.
I appreciate the pleasant scent and thick lather that cleanse my hair effectively.
I love the shampoo's delightful fragrance and abundant lather that deeply clean my hair. It excels at removing oils but can cause dryness if overused, so I pair it with hair tonic for balanced moisture and health.
I find this shampoo awesome for daily use and long hair improvement.
I use this shampoo daily and it works awesome. My long hair looks better now than it has in ages.
I love how Chi Shampoo repairs my bleached hair with huge bottles and a manly scent.
As a user with bleached hair, I find Chi Shampoo highly effective for repair, offering huge bottles for long-term value and a unique manly scent that I enjoy daily.
I adore this shampoo's great scent and double function that saves time for my boys.
I bought this shampoo for my boys, and they absolutely love its wonderful scent and the time-saving double feature that makes their hair care routine quicker and more efficient every day.
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