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 trusted Shiny Leaf shampoo for hair regrowth but after two years, my hair is visibly thinner despite scalp claims.
Shiny Leaf shampoo's optimistic scalp-reviving and regrowth promises didn't deliver – after 24 months of use, my hair is noticeably thinner with no visible improvements.
My itchy scalp finally found lasting relief with this gentle, effective shampoo alternative that outperforms others.
After years of scalp sensitivity and itch, this shampoo is my true relief. It outperforms others like T-Gel, is gentle yet effective, and its smart foaming prevents me from using too much. Finally, lasting comfort!
I use this shampoo daily for visibly fuller hair and significantly less hair loss, highly recommending it.
Every hair wash with this shampoo gives me thicker, fuller-looking hair while effectively minimizing shedding. As a loyal user, I confidently recommend it for combating hair loss.
My dandruff vanished completely using this great-smelling shampoo, following its simple instructions.
This shampoo completely banished my dandruff after consistent use, leaving my hair healthy. I love the pleasant scent, though achieving these fantastic results requires diligently following the product directions.
I love this gentle Aveda shampoo; a small amount leaves my non-dyed hair soft daily, no conditioner needed.
This Aveda shampoo is incredibly gentle and soft on my non-dyed hair. I use just a small amount daily; it doesn't foam much but cleans perfectly, eliminating my need for conditioner. I wholeheartedly recommend it for simplicity and results.
I switched to Bed Head shampoo for rich lather and amazing hair results. Totally worth it!
I ditched my disappointing Level 2 shampoo for Bed Head's version. Its satisfying lather transformed my hair routine completely. Zero regrets about this switch!
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