It all goes back to the color wheel—yellow and purple are complementary colors, and orange and blue are complementary as well. “Blue shampoo is used to cool down unwanted warm tones in hair ...

Brassy hair refers to unwanted warm tones like orange yellow or red showing up after colouring especially on lightened hair ...

“Unlike purple shampoos, which are meant to neutralize light yellow tones in the hair to reveal an icy ... to color theory 101. Because blue sits opposite orange on the color wheel (the same ...

Purple shampoos may be a blonde’s best friend, but washing hair with the best blue shampoo can help brunettes ... orange and yellow tones that can appear in brown hair in order to ...

Like a bad spray-tan, hair can ... meaning that purple essentially acts to cancel out the overly-yellow shades that can crop up in dyed blonde hair. The same goes for blue shampoos—blue opposes ...

Whether you've fully embraced your gray hair ... to look more yellow than you’d like, purple shampoo is going to be your new best friend. On the other hand, where blue shampoo really shines?

Color-depositing shampoos add specific pigments (either purple, blue or green ... to tone and neutralize hair, allowing it to counteract unwanted brassiness and yellow/orange hues that can ...

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

When brassiness appears, colored hair takes on unwanted warm hues, including orange or red tints to brown hair and yellow ... re not purple shampoos, either. To help us dive into the blue ...

Purple, which is a combination of blue and red wavelengths ... leaving a violet tint on the hair. In blonde hair, purple shampoo reduces orange, yellow, or brassy undertones, so that your hair ...