The best I have found.....LOVE IT!
My hair is natural light gray and long.  I am in the sun a lot so the top layer of my hair turns a bit yellow. I have tried every purple shampoo for gray hair and none of the really work.  I am using the Metallic Silver on my hair and LOVE IT!  Definitely silver....not white silver but silver gray. This product leaves my hair shinny and soft and manageable !
Rating: 5 stars