If like me, you are always trying to add volume to your hair, and if it's generally healthy: do not buy Wen! I had only used it twice, then I used my regular shampoo.
Even a day or two after using the Wen, my hair would not curl using hot rollers. Usually, my hair curls very easily. I had zero volume. It was shiny and healthy-looking, but completely lacked volume.
In my opinion, Wen is for you if you have damaged hair, or the type of hair that frizzes and needs to be controlled. In the brochure they show a "before and after" of someone with fine hair.
While the "after" shot looks a little fuller, it is obvious they cut the hair and added layers. To me, this is false advertising.
Review about: Wen Shampoo.