Unfortunately, dyed hair likes to slowly creep back toward that brassy yellow over time. That's where purple ... after just one use. This aptly-named shampoo works to improve upon the blonde ...

Every blonde knows that the best way to maintain your hair dye is to use the best purple shampoo. If you love the look of ...

Why We Love It: Even though our tester Mary gets her dirty-blonde hair highlighted ... purple shampoo she has used, but it's also the fastest to work, making a big difference after just one ...

Want to create the illusion of brighter, blonder hair with every wash? It’s time you tried a purple shampoo ... illuminate blonde hair, revealing a brighter, cleaner colour after just one ...