I use Head and Shoulders Shampoo and conditioner in one everyday. I never have a problem with dandruff. I have long hair. Only time I had a problem, I used to shave my head. I went out on a hot summer day and my head was sunburned really bad. It flaked off like dandruff pretty bad for a while. I don't have very dry skin so it probably works out that I use the shampoo conditioner everyday.