We're all different in this too, @Doodoo. I finished chemo in the October, but didn't start going out without a hat or scarf until February.  My hair grew back very salt and pepper to start with. My chemo curls were lovely soft curls, and I wanted to keep them. Alas for me, by 1 year after chemo, no more curls.  By around the same tome it had returned to my natural colour. I elected not to go back to colouring it, instead joking with people that I got out of growing the colour out the "easy way" - said with tongue firmly in cheek  :p