I used to have terrible dandruff. Purely anecdotal, but I stopped using shampoo in my hair, and the problem mostly went away. I still wash it throughly, using o

I used to have terrible dandruff. Purely anecdotal, but I stopped using shampoo in my hair, and the problem mostly went away. I still wash it throughly, using only water, scrubbing hard with a towel when I dry off. My hair is noticeably less oily after washing, but it's no longer frizzy and stays in place better when I comb it. I have short hair.