Brunette hairseems like a low-maintenance hair color.
According to theNew Look Institute, brunette hair can especially be affected by chlorine in swimming pools.
Lighter brunette hair can also be more susceptible to sun damage as there’s less melanin, perColor Wow.

Based on color theory, blue shampoo helpsneutralize orange(viaMarie Claire).
That’s why brunette hair can look ruddy or brassy after being color-treated or going through damage, perRefinery29.
John Frieda’s Brilliant Brunette line was a 2000s cult-favorite at thedrugstorethat helped revive dull hair.

Now John Frieda has a blue shampoo called Blue Crush for Brunettes.
The shampoo features crushed blue pigments to help “neutralize stubborn orange tones for cooler, brighter brunette.”
One of the longest-lasting options is Redken Brownlights Blue Toning Sulfate-Free Shampoo.

The color-depositing system works over time to restore and retain your vivid brunette color.
The good news is that it makes your hair care regimen more manageable, too.
Hair that needs serious color correction can benefit from Fanola No Orange Shampoo.
The shampoo packs a vivid blue pigment that will immediately cancel majorly orange hair.
If you have naturally light-brown hair, then brassiness may especially be a problem for you this summer.