By MyAwesomeBuy Research Team · Updated April 29, 2026 · Our Methodology
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No manufacturer paid for placement. Rankings based on verified buyer review data.
Quick Answer
Moroccanoil Blonde Perfecting Purple Shampoo is the top overall pick — a salon-grade formula with argan oil that tones brass while conditioning. Joico Color Balance Blue is the best option for darker blonde hair that needs stronger brass neutralization.
Purple shampoo works through color theory: purple and yellow are opposite on the color wheel, so purple pigments in the formula cancel out the yellow and brassy tones that develop in blonde and color-treated hair. The result is a cooler, ashier, more salon-fresh appearance between color appointments — without the cost or damage of re-bleaching.
How Long to Leave It On
Purple shampoo works by depositing pigment, not by removing color. Leaving it on longer deposits more purple pigment and creates a cooler tone. Shorter application times (3–5 minutes) maintain a warm blonde without over-toning. Longer times (15–30 minutes) create icy or silver tones. Moroccanoil Blonde Perfecting Purple Shampoo includes argan oil to condition while toning — reducing the drying effect of longer processing times.
Purple vs. Blue Toning Shampoo
Purple shampoo is calibrated for light yellow brassiness in pale blonde, highlighted, and silver hair. Blue shampoo targets orange and red tones in darker blonde, brunette highlights, and warm brown hair that has been colored or lightened. If your hair turns orange rather than yellow when it brasses, a blue shampoo like Joico Color Balance Blue will be more effective.
Use purple shampoo 1–2 times per week as a replacement for regular shampoo. More frequent use can leave a temporary lavender tint or dry the hair with the surfactants in the formula. Always follow with a deeply conditioning mask or conditioner — toning shampoos are often more stripping than regular formulas.
How We Evaluated These Picks
We assessed toning strength, conditioning ingredients, pigment quality, and ease of controlling the toning level. Picks were cross-referenced with colorist recommendations and verified user reviews from blonde and gray hair types.
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