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 shampoo makes my hair longer, fuller, and promotes new growth.
This shampoo has made my hair longer and fuller, with baby hairs growing on my scalp. I appreciate the affordable cost and plan to reorder without buying full kits.
After 15 months, I have full hair thanks to Zenagen Revolve shampoo.
I used Zenagen Revolve Shampoo for 15 months; my thinning hair became full and thick. It lasts 7 months with alternate day washes, and I've repurchased it thrice, highly satisfied.
I experienced the healthiest hair ever with longer-lasting dye and fewer washes.
After using this product, my hair never been healthier, hair dye lasted much longer, I washed less often, though expensive.
This purple shampoo outperforms others and doesn't leave my platinum hair purple.
I highly recommend this purple shampoo as it outshines competitors, avoids purple stains on platinum hair, and is truly underrated for its effectiveness.
I love how Puriya shampoo relieves my itchy scalp and works without conditioner for eczema.
Using Puriya shampoo, I experienced relief from itchy dry scalp after first wash, it helps manage eczema, and I skip conditioner with my long fine hair.
I love this Tea Tree shampoo for its affordable gallon size that lasts years.
My long-term use of Tea Tree shampoo proves its gallon size is highly economical and durable, greatly improving my hair's health and saving me money over time.
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After one use, I noticed my thinning hair improving and felt happy.
I enjoy this shampoo's quick cleanse and moisturized feel for straight hair.
I love that this shampoo cleanses deeply while keeping my hair moisturized.
I love how this shampoo smells incredible and leaves my hair soft without dryness.
I love how it strengthens hair, adds volume, and is safe daily.
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I love how this shampoo makes my hair soft and manageable without any itching.
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