I went through a bad patch last year and got some pretty bad dandruff. I don't usually get this so it was a bit of a shock. I had heard and seen a lot about head and shoulders so it was the first and only product I went and purchased.
First off I really like the smell. It is fresh and clean and really lingers in my hair. This really did an excellent job at getting rid of my dandruff but I felt like I needed to use it daily to get rid of it and I really hate washing my hair everyday. In fact I now wash it 1-2 times a week.
Thankfully my dandruff was short lived and went away after about a month so I returned to my normal shampoo and conditioner. This certainly did what it was supposed to while I was using it. Thanks goodness the dandruff never came back as I have black hair and it was so horrible and unsightly. Give this a try and see if it will help you!
I have very oily hair that builds up and produces flakes on my scalp so this shampoo has worked wonders for me. It's not just for dry flaky hair but oily as well, my hair no longer has these big build ups of oil and dead skin and I can leave my hair longer without a wash like over a week! leaves hair fresh for long and smells so good!