My hair started graying when I was 11.5-12. I died it black-brown from grade 7 until my 19th year, when I grew it out and hacked off all the black. Then I only had my natural hair, which had barely any colour in it anymore. :S It lightened at a rapid pace over the next 8 years, and now my hair is kind of a snow gray in light from a common white lightbulb. It's just about white outside during Winter. It looks like a silver helmet on a stage. (LOL) Like my biological father's was.
My hair was going to gray anyhow, but it lost it's colour so fast because of a blood condition I have. So my avatar is not actually a vampire, she's just suffering from B12 Malabsorption Syndrome and poor red blood cell count.
rofl See, look: she even has a scar! Ha, ha,ha... Mine's over my eye (from when I fainted last summer), but Gaia avatars are too small to make one of those.