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 gives my fine hair lightweight volume and a loose, clean feel without weighing it down daily.
As someone with fine hair, I appreciate how this shampoo lifts roots for loose, airy volume without miracles. But beware: others report dryness and scent issues, so results vary by hair type.
This huge shampoo lasts forever on my 28in hair and even washes our bull!
This massive shampoo supply saves me constant Walmart runs for my 28-inch hair. We still have 3 full bottles, and it's tough enough even for washing our bull!
I love this shampoo's amazing scent and anticipate great hair results when paired with my conditioner daily.
As a conditioner user, I adore this shampoo's luxurious scent and expect transformative hair benefits from the duo, but desire a larger size for extended use.
As a nurse, I tried no rinse shampoo post-surgery—it left my hair clean, soft, and non-oily without water.
I doubted no rinse shampoo as a nurse until post-surgery use: it cleansed thoroughly without water, left hair incredibly soft and zero oiliness. Now I swear by it!
Woodys shampoo cleans thoroughly without drying, worth every penny for my perfect daily hair care.
As a guy who tried many shampoos, Woodys finally delivers the perfect daily cleanse without drying. I'd pay more for this irreplaceable wash-and-go solution!
My tea tree shampoo naturally prevents dandruff, boosts growth, repels lice, and nourishes with oils.
My weekly wash with this sulfate-free tea tree shampoo prevents dandruff fungus, stimulates growth, deters lice, and softens hair with keratin and natural oils.
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