"Brassy hair is hair that is too orange, gold, or yellow," says colorist Lorena Valdes. This specific tint is very obvious ...

As you likely learnt in any school art class, purple is opposite yellow on the colour wheel. Simply put, this means the ...

"It neutralizes the brassy tones that occur when lightened hair oxidizes." In layman's terms, it keeps your lightened brown hair from turning that pesky orange-red hue. While blue shampoo is ...