I use a combination of shampoos and have always liked the Hydrating shampoo by Biosilk during periods when my hair is extra-dry. I thought I would try the Smooth version since I am trying to get a smoother look. Whatever it did to my hair, it wasn't smoothing, more like drying. Also tried the Silkening version, which was a little better, but from now on I will stick with Hydrating (although I think it's being discontinued . .. too bad).