Straightening your hair with a hot iron?
from these 2 only, which is most harmful for your hair?
Most Helpful Girl
Ehh, they're both relatively damaging, particularly if you have curly or afro textured hair.
Hairspray and mousse contain alcohol, which dries out the hair and scalp and that's the last thing curly hair needs.
But straightening hair is well, damaging even with heat protectant.
My vote is straightening is more damaging. I think breakage and fallout can be controlled with mousse and hairspray a bit. look for an alcohol free mousse1