I'm nearly 57 and my hair has absolutely minimal grey, except for a hereditary white flash at the front, which I've had for maybe 20 years. I've religiously dyed it to match my own hair colour, but I'm bored of constant touch ups. I've had a nasty virus for the last few weeks and had to cancel my last appointment, so I've got a good inch of regrowth, which means I'm seeing more of it than I've seen for a long time. It's a snow white now, rather than the steely grey it used to be, and is about an inch wide on each side of my face. The rest of my hair is a light brown, and as I say, the flash is dyed to match. My hair is to my collar bone, so it would be a mammoth job to grow out. Is there a way of helping it return to its natural white?