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 use this shampoo daily; a small amount gives rich lather for soft hair.
I really enjoy this shampoo for everyday use; a tiny amount produces excellent lather, leaving my hair soft and manageable with ease and efficiency.
I use this shampoo to eliminate flakes and wash less for a clear scalp.
This shampoo completely removes my hard flakes when I brush before washing, allowing me to shampoo just twice a week for a perfectly clear and refreshed scalp.
I really like the thick lather and clean ingredients of this shampoo.
After three weeks, I find this shampoo convenient, lathers well, cleans effectively, has a nice scent, and uses clean ingredients.
I find this shampoo concentrated; it makes my hair squeaky clean.
I find this shampoo highly concentrated; a little cleans my scalp and hair perfectly, and I highly recommend it.
This non-aerosol dry shampoo delivers best results; I use it weekly with satisfaction.
I consider this the best dry shampoo for its non-aerosol formula that keeps my hair fresh and eco-friendly, and despite some application challenges, I find using it 2-3 times a week perfectly manageable for great hair days.
This shampoo is my go-to for blonde highlights, hydration, and fresh fragrance.
After trying various products, I found this shampoo best for preserving blonde color, providing deep moisture to prevent dryness, and leaving a long-lasting fresh scent that I enjoy every wash.
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I switched to Woody's: cedar scent, great clean, little product, scalp fixed.
I trust Schwartzkopf shampoo to strengthen my fragile menopausal hair effectively.
My hair is fuller with less fallout and hydrated curls after using this shampoo.
I regrew my hair from stress loss and enjoy its softness now.
After using this shampoo, my hair feels clean, smells wonderful, and brushes smoothly.
I saw baby hair growth and less hair loss with this shampoo in just four uses.
I get easy distribution and clean feel with this shampoo's rich lather.
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