DD (19) has suddenly developed very greasy hair over the past month. She used to be able to comfortably wash it every other night but now she’s barely making it through day 1 without her roots starting to look oily. Her hair is naturally very straight so it gets obvious quite quickly. No idea of the cause as nothing (shampoo, exercise level etc) has changed.. it’s really strange.
Any recommendations for remedies? A good dry shampoo maybe? She wants to avoid having to wash every day due to bleach damage/frizz. Have already tried Neutrogena T Gel shampoo for oily scalp but it didn’t make any difference whatsoever.