It all comes down to the color wheel. Purple shampoo eliminates yellow tones in blonde hair by using violet pigments to neutralize brassiness. Blue shampoo is ideal for brunettes, neutralizing orange ...

The feeling that lives rent-free in our heads? Walking out of a salon with freshly colored hair. But we demand rent from the brassiness and dullness that happens after a few weeks. That’s where ...

Purple shampoo is beloved by bleached and blonde-haired heads around the world. Outside of the risk of staining your skin or shower tile, they are a relatively safe way to manage hair color at home.