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 highly recommend this shampoo as it transformed my fragile, breakage-prone hair.
My hair was fragile and broke easily, but this shampoo strengthened it, controlled humidity, and my stylist saw results fast.
This shampoo leaves my hair soft and smells wonderful; I'd buy it.
This shampoo gives me soft hair and a nice fragrance. Although the pump didn't work well, I'd purchase it again for the benefits.
I gained incredible volume and fuller-looking hair with this shampoo after proper use.
Using this shampoo correctly gave me amazing volume and made my thinning hair look fuller and healthier, boosting my confidence immensely.
I love how this shampoo makes my hair silky smooth and soft.
I tried this shampoo in Aruba and found it left my hair incredibly silky smooth, so I purchased it right after coming back home to enjoy those benefits daily.
My hair stays healthy with this conditioner, scalp feels great, fragrance pleasant.
I highly recommend this conditioner as it maintains my hair's health, soothes my scalp, and has a delightful fragrance.
I love this shampoo's rich lather and volume control; my salon uses it too.
My salon uses this shampoo, so I bought it and enjoy the luxurious lather that adds volume and control to my hair, making it easy to style daily.
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I adore how this shampoo enhances my brown and blonde shades, keeping them vibrant and fresh.
I find this shampoo excellent for shiny hair and gentle on color.
This conditioner controls oil, adds volume, and smells fantastic for my hair.
I love how this shampoo protects my color and aids recovery, but it's too hydrating for fine hair.
I love this shampoo's light scent, clean hair, and affordable bulk packs.
I love how this shampoo makes my thick hair soft and moisturized for days with no buildup.
I was skeptical but this shampoo colored my gray hairs shiny black in just ten minutes effortlessly.
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