Color Shampoo - Cool Brown

I use this to keep my dyed brown hair from turning brassy, since I am an arizona wakeboarder I am in the sun a lot and i just dont want my hair to have that sunkissed look. It does its job, just...

I think overall its a good shampoo.It has kept my dyed brown hair brown and not brassy, also i have chunks of dark blonde in my hair and it has kept it from turning brassy also. I think 10$ isnt...