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.
This shampoo makes my hair soft, silky, shiny, and frizz-free instantly.
After using this shampoo, my hair became wonderfully soft, silky, and shiny; it's lightweight, stops flyaways, and feels smooth, making it my top choice for daily care. (20 words)
This shampoo defines my curls, adds shine, and cleans gently despite needing extra product for lather.
My hair feels soft, looks shiny, and stays clean with enhanced natural curls after using this shampoo. However, low lather means I use more product, reducing value.
I love this shampoo for my white hair, but its bottle cracks easily if dropped in the shower.
This shampoo is fantastic for maintaining my beautiful white hair color and health. However, the bottle is too fragile and cracked when I dropped it in the wet shower, which is disappointing.
After a decade, my hair stays healthy with this favorite keratin shampoo. Totally recommended.
For ten+ years, this keratin shampoo maintains my hair's health between professional treatments, making it my trusted choice. Highly recommend!
I love how this purple shampoo lathers richly, brightens hair in minutes, and never leaks—my holy grail!
This purple shampoo is my ultimate find—it lathers richly, erases brassiness in just 5 minutes, and delivers lasting brightness without leaks. I use it bi-weekly and always repurchase.
I love this fair-trade organic shampoo for healthier hair and reduced washing, worth every penny.
As a long-time organic product enthusiast, I'm thrilled this fair-trade shampoo delivers visibly healthier hair with less frequent washing, making the investment worthwhile for sustainable beauty.
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I switched to this natural shampoo and it cleared my acne from shampoo drips completely.
I love how this shampoo instantly repairs my thick, coarse hair after swimming with minimal product.
I love this shampoo for its light scent and easy application that keeps my hair clean for days.
This shampoo makes my hair strong and fragrant, potentially slowing hair loss.
This shampoo quickly tames frizz and makes styling my curly hair effortless.
For dandruff relief, Leonor Greyl shampoo controls itching longest and smells best.
I rate this shampoo 10/10 for its amazing results and always recommend it.
I finally overcame my seborrheic dermatitis using DHS SAL Shampoo in one week.
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