Just like purple shampoos banish brassy undertones in blonde or gray hair, blue shampoos accomplish the same thing for brunettes. Since blue shampoos are relatively new to the market, though, shopping for one can be tricky — but luckily, you can find some great options right on Amazon. The best blue shampoos will come from trusted salon brands and be enriched with nourishing ingredients to keep your hair looking (and feeling) its best. Bonus points if you can find one that's sulfate-free to really prolong the life of your color.
Depending on how brassy your hair is, you can use your blue shampoo once a week or more frequently. Make sure to apply the shampoo all over your head, from root to tip, to ensure an even color. Also, the longer you leave the blue shampoo in your hair, the more effective it will be — so if you're really looking to bust serious brassiness, keep it on for a few minutes.
With that in mind, scroll on to shop three of the best blue shampoos you can buy on Amazon right now.
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1The Best Sulfate-Free Blue Shampoo
Redken's Brownlights Blue Shampoo is like the unicorn of blue shampoos because it's sulfate-free — which is actually pretty hard to find as far as color-correcting shampoos go. Sulfates can not only strip your hair of its color, but can also exacerbate dryness — so this shampoo is a great choice if your hair is color-treated, chemically treated, or dry and damaged (also because of the hair-strengthening wheat proteins in the formula). Designed for use on brunette hair — whether dyed, highlighted, or natural — the formula works to remove brassiness and tone hair for an overall cooler appearance.
2A More Affordable Blue Shampoo
Another great (and less expensive) choice from a trusted salon brand, MATRIX Total Results Brass Off Blue Shampoo will help remove brassy or orange undertones from lightened brunette hair. It's not sulfate-free, but hundreds of Amazon reviewers swear by it, calling it things like "the best toning shampoo" they've used.
3A Great Blue Shampoo/Conditioner Duo
Pick up a blue shampoo and conditioner with this duo from color experts Joico. Both products contain the brand's damage-repairing Bio Advanced Peptide Complex, as well as their Multi-Spectrum Defense Complex to keep hair protected from UV-induced fading. They also work to fight frizz, enhance shine, and promote generally stronger hair. Use them together once or twice a week to bust brassiness and give your color a cool-toned refresh.
