I’ve used biosilk dry shampoo. I really like that kind. I put some oil for hot oil treatment in my hair the other day. Even after shampooing my hair at least 3 times it left it oily. I ran out of dry shampoo so I used some baby powder. It can be good sometimes I’ve read. I guess it absorbs any dirt & grease or oil. 🙂
Before going gluten-free I had an oily scalp and dry, split ends. Since going gluten-free I just have wispy hair that dries out easily. I try to rinse thoroughly, and use just water if the ends aren’t splitting and sticking together, conditioner if they are, most days–shampoo a maximum of three times a week.