Liquid Hair Color Preserver

This category just said color preserver. I'm reviewing the new formula Color Preserver in the red bottles. The shampoo smells yummy and is easy to lather. Leaves hair feeling nice and clean. The...

My colorist *swears* by Color Preserver, uses it and practically orders clients to buy it. I must say, it's the only thing I have ever done (besides less-frequent shampooing) that seemed to slow...