I found it yesterday at work. I had gone to the bathroom and while washing my hands I found something... glittering... in my hair.
It is completely and totally white. Not grey or any hint of my naturally brownish, blondish reddish thing.
I actually feel strangely proud of it. Also a little amused, because I guess this shows how much I really have of red tones in my hair (Redheads go directly to white, all other hair colours go through grey first)