A lot depends on your complexion.If you don't tend to use make-up you probably have very good skin. I used chemical temporary shades to hide the grey for awhile but then the all-over one colour made me look older instead of younger. So then I used a Wella ash blonde semi permanent that made the grey strands look like blonde streaks. It was fantastic but they took it off the market. After that I put streaks in my hair for a long time because I didn't like just odd stands of grey mixed with very dark hair as mine was. As I became more grey I no longer minded although my hair is still dark at the back. Every now and then I think of putting the streaks in again because it does give it more body.

The product you suggested happyshepherd sounds like something my daughter should use but I just can't imagine her waiting four hours for it to develop. I put a temporary colour in her hair every couple of months but the colour does aggravate her tendency for psoriasis. I must tell her about this natural one.

Two or three hours is usually enough. Just get her to pick a night when she can have a quiet evening watching ( the rubbish on ) TV or reading a good book. You can put a cap on ( one is supplied in the pack ) and it does'nt seem to drip down your neck. ( or anywhwere else for that matter. ) It's not too hard really.

Hairdressers may still offer henna colours?? - natural Earth product and permanent but the end colour may blow everyone's eyes out as much as hot chillis would do an asian dish!!

Ask your hairdresser who will pick the right shade for you. - it would give you a blast that will last for many months. Be prepared to be in a salon for some hours but leave with bright shiny healthy hair.

You can Google "Henna Hair" and see some results in pictures. Just don't get the wrong mix because you could be stuck with it.