Just thought I'd add one more to the thread. I'm 41, brunette and very slowly going grey (well, white actually). Like a few of you on this thread my hair grows quickly so the thought of having to dye it every 4-6 weeks depresses me - got better things to do - like cycling! I also actually like my own natural colour which there is still a lot left of so I'm sticking with it and see what the outcome is. It doesn't bother me and because I don't make an issue of it friends and family don't tend to notice it either. Only one person has ever said to my face that I should dye it (a female colleague) and I congratulated her on her honesty but thought that it was a shame that it bothered her so much.