Don't bother
A previous hairdresser got me onto this dry shampoo and it is the best dry shampoo that I have ever used. "But the title of this review is don't bother", I hear you say. Well yes, don't. Nearly every single bottle that I have bought has stopped spraying or the spray nozzle has broken and has left me with a full tube of dry shampoo unused.
I noted on Google reviews that a lot of other people have said the same thing. Save your money and get something else.