Before using Pantene's "Fine Hair Solutions" Shampoo, I used to use this "Full and Thick Shampoo. It is a pretty good product, and works well. However I like it less than the Fine Hair Solutions product, to which I have switched. Pantene's Full and Thick shampoo does help to increase hair volume. While using it I felt that my hair seemed noticeably thicker than when I was using any of their other shampoos not made for increasing volume. Also, it was fairly good at creating volume without increasing frizziness, as some volumizing shampoos will do in wet weather. However, the main reason that I switched from this shampoo to the Fine Hair Solutions is that it tends to build up over time. I found that the build-up weighed my hair down, which made the extra volume ineffective and drab. Ultimately, it is a good shampoo, but should probably be alternated with a lighter formula.