One thing to note, blue shampoo isn’t meant to be used daily. Lake Orion, Michigan-based colorist Grace Rogers, recommends using it once a week or as needed. “Start off with one wash ...

An InStyle writer with color-treated blonde hair reviews the Davines Heart of Glass Silkening Shampoo, a blue toning shampoo ...

meaning there's stuff to wash out), and those darker hues can get warmer (and brassier!) as they fade. Enter blue shampoo. Similar to purple shampoos, which keep blonde hair bright, blue shampoos ...

or it could mean that the shampoo you’re using to wash regularly is stripping your toner off.” In my case, twice a month has been a perfect balance. Davines’ blue shampoo and conditioner ...

Enter the best blue shampoo. When brassiness appears, colored hair takes on unwanted warm hues, including orange or red tints to brown hair and yellow or gold in ashy blonde tresses. The best blue ...

If you’re after a dry shampoo that refreshes without the heavy buildup, Living Proof’s Perfect Hair Day Dry Shampoo is worth ...