What is blue shampoo and why is it good for brown hair? Similar to purple shampoo, this product is designed to tone hair color. Blue neutralizes orange, red, and copper undertones. Like its purple counterpart, it helps to correct brassiness in your hair color. However, blue shampoo is most effective for brunettes rather than blondes. Want to learn more? Then read on!
What Is Blue Shampoo?
You can think of blue shampoo as a shampoo with blue pigment. But there’s more to it than that – it's actually a type of hair toner that helps neutralize or enhance certain undertones in your color.
Blue shampoo is typically used for brown hair, as it combats the kind of orange, red, and copper undertones that make brunette hair look brassy. Its color isn’t coincidental – blue is on the opposite end of the color wheel from the aforementioned undertones, which lets it neutralize these tones effectively.
What Does Blue Shampoo Do for Brown Hair?
Blue shampoo does for brown hair what purple shampoo does for blonde hair – it neutralizes the most common, unwanted undertones that are the result of coloring your hair brown. The only difference between the blue and purple versions is the particular undertones they target:
Blue: works for orange, copper, and red
Purple: works for yellow and slight orange
As in the case of blonde hair, when coloring your hair brown, your colorist will likely use toners or glosses that have cool or ash tones to them to neutralize any brassiness showing in the hair. However, it will fade away and wash off with time. By using a blue shampoo, you can prevent that from happening.