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 found this shampoo soothes my sensitive scalp without irritation or residue, and it's budget-friendly.
Having a highly sensitive scalp, I appreciate that this shampoo avoids agitation and leaves no buildup. It's a simple, cost-effective choice that makes my hair care routine comfortable and worry-free.
I found this two-in-one shampoo incredibly convenient, especially with its pump bottle for easy use.
After using this shampoo, I can say it's the best for convenience. The two-in-one formula and pump bottle save me time and effort every day, making hair care simple.
I appreciated the cruelty-free shampoo's gentle scent and ethics, but it made my thin hair oily, requiring daily washes instead of weekly.
As a user with thin hair, I valued the shampoo's cruelty-free commitment and mild fragrance, yet it led to immediate greasiness, disrupting my usual twice-weekly wash routine and necessitating daily use to avoid waste.
I find this shampoo excellent for smoothing and detailing between deep conditioning.
In my hair care routine, I use this shampoo as a detailer to achieve a smoothing effect. It serves as an excellent conditioner between my deep conditioning treatments, which I do every few weeks based on my hair's needs and condition.
I love how this shampoo cleans my hair without drying it, leaving a light fresh scent and no harsh chemicals.
This shampoo has become my top choice as it moisturizes my hair without causing dryness, offers a pleasant light scent, contains no harsh chemicals, and effectively cleanses all hair types including dry, oily, and colored hair.
I appreciate the shampoo's large bottles and value for short hair, but find the scent too overpowering for my liking.
I found this shampoo provides excellent value with big bottles that last long for short hair, but the scent is overwhelmingly masculine like aftershave, which may not suit everyone, and I prefer using separate conditioner for my wavy hair.
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I found this shampoo's honey aroma mild and pleasant; it performs well for hair care.
After using harmful shampoos, I now prefer organic sulfate-free for healthier hair.
I highly recommend this shampoo for less hair loss and thicker hair.
This shampoo effectively thickens my hair, making it the best I've tried with a long-lasting bottle.
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