I have recently discovered dry shampoo. It's brilliant for gaining me an extra day between washes, for example when I don't have time to wash or dry my hair.
How long can you use it? I normally wash my hair every 5 days or so, more often if swimming or sweaty. If, say, I was going away for a week or more where it wouldn't be convenient to wash my hair, could I use dry shampoo instead?
(My hair would be wavy/curly, but menopause has turned it dry and frizzy.)