My hair is fine, oily and flat. I can usually only use a commercial shampoo for a couple of weeks or up to a month before it just stops cleaning my hair. I've tried other natural products like goat milk soap, but it always dried my hair out too much, yet the next morning my hair was so oily it looked wet. I tried the sample size of the normal to oily shampoo and it has consistently left my hair shiny and manageable without conditioning. Also my hair isn't as oily the day after as it used to be. I would highly recommend this shampoo.