Well I've noticed her hairline often roughly about 4 to 6 weekly, and this has been the first I've mentioned it. I colour my hair all the time, and have done so for years, my hairline looks exactly like hers, until I use a special lotion to remove it. I'm convinced more than ever she's taking her colour (or telling her hairdresser) right down to the roots which go to the face either that or we would see her grey hair - no-one of Julia's dark colouring, and age has natural colour, it's either peppered with grey, or it is (in most cases) grey at the roots, if left alone, the whole head would be grey.
After some time, with shampooing, the colour looks less so, when I first started this topic I think she had her colour done the day before, which is why it was more noticeable then and slightly fading on the forehead now - that's why I'm convinced. So much for the wonderful products they sell, and so much for presenters who should know better. I like Julia, but she's not my fav.