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 transformed my bleached frizz into soft, manageable hair effortlessly.
I tried countless shampoos, but this one revived my bleached, frizzy hair like magic—now silky, easy to style, and genuinely healthy-looking. 10/10!
I love my salon-recommended R&Co shampoo for its heavenly fragrance and silky hair transformation – an Amazon gem!
My salon-inspired R&Co shampoo delivers unmatched softness and aromatic luxury – discovering it on Amazon felt like winning the haircare jackpot. Every use reaffirms my love!
This shampoo eliminated my dandruff overnight, perfect for dark wardrobe maintenance without visible flakes.
As a frequent black clothing wearer, I'm amazed how this shampoo eliminated visible dandruff within days while keeping my hair soft and scalp irritation-free. Total game-changer!
I found my ideal shampoo and conditioner for smooth, healthy hair—highly recommended!
Years of searching ended with this shampoo: silky hair, easy availability on Amazon, and salon-quality results without store hassles. Love it!
This shampoo transformed my menopause-thinned hair, leaving it fuller and healthier—even my mom loves it!
This shampoo worked wonders on my fine, menopause-affected hair, adding volume and strength. Even my 79-year-old mother swears by its transformative results!
This shampoo keeps my long hair fresh, non-greasy, and smelling amazing – a must-have for hair growth!
After growing out my hair, this shampoo became my savior – lightweight, fresh scent, no grease. Just wish the packaging was more eco-friendly!
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