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 how this tea tree shampoo leaves my scalp hydrated and dandruff-free without any dryness.
Initially skeptical, I tried this tea tree shampoo and was amazed by how it hydrated my scalp, eliminated dandruff, and left my hair smooth without any dryness or irritation, just like a salon treatment.
This shampoo is gentle, effective at cleaning, and great for color protection.
I use this shampoo for gentle cleaning and color protection; it dries hair so I apply conditioner. Mild scent is nice, but price and size are issues.
I use a teaspoon of Auromere shampoo for full-body luxurious suds and a calm scent from healthy ingredients.
After trying Auromere shampoo, I love how a small amount creates luxurious suds that cover my whole body with a calm scent, thanks to natural ingredients, and I appreciate the company's quality in other products like toothpaste.
I use this shampoo and foam to add body and texture to my thin hair effectively.
I combine this shampoo with Revolve Thickening Shampoo and volumizing foam to add incredible body and texture to my thin, limp hair, making it look full and vibrant daily.
I use this shampoo to keep my gray hair vibrant and prevent yellow tones from hard water.
As someone with naturally gray-white hair, I rely on this shampoo to stop yellowing from water minerals, wash less often every 5-7 days, and use the conditioner for dry hair, all while saving product.
After quitting hair dye, this shampoo restored my hair's health wonderfully.
After stopping hair coloring, I used this shampoo to restore health, and it delivered amazing results for my natural hair.
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I cut daily hair loss by half but got flat, greasy strands and strong Pine-Sol scent lingering.
This shampoo makes my hair soft, silky, shiny, and frizz-free instantly.
I love this shampoo for my white hair, but its bottle cracks easily if dropped in the shower.
After a decade, my hair stays healthy with this favorite keratin shampoo. Totally recommended.
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