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.
My shampoo arrived fast with no leaks, authentic and a great deal.
I absolutely love this authentic shampoo; it arrived quickly with no leaks and was an amazing deal through Amazon Prime delivery service.
I love how this shampoo makes my hair soft and clean affordably.
I tried this shampoo randomly and love how it makes my hair soft and clean; it's great value and I plan to try more products.
I reduced hair thinning and improved my scalp health using Bosley shampoo effectively.
I noticed slower hair thinning, healthier strands, and reduced shedding with Bosley shampoo, making my hair routine effortless and rewarding over time.
I love how this shampoo keeps my hair clean and soft for longer.
This shampoo is my favorite for hard water; it keeps hair clean and soft, foams easily, and lasts for many months without needing much product.
I love the rich lather, clean rinse, and my soft, shiny hair.
I love how this shampoo lathers thickly, rinses clean, and with the conditioner, my hair becomes soft, shiny, and I've seen less shedding since I started using it regularly.
This shampoo made my hair soft and moisturized, and it's incredibly affordable, beating expensive brands easily.
This Aussie shampoo transformed my hair to be super soft and moisturized, and I can't believe it costs less than $5 for a big bottle, easily beating all my expensive shampoos in quality and value for money.
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