My dark blonde hair was highlighted (for the millionth time) to a very light blonde in June, and since then it has become VERY dry and damaged. It's really only the bleached streaks of my hair that are noticeably dry. I'm attempting to do lots of at-home repair (using much better products, blow drying and straightening less, etc), but I was wondering if colouring my hair darker would help. I'd go to the salon to get this done, I wouldn't do it myself. I've read before the darkening bleached hair can help repair it, is that true??

I had my hair coloured dark brown last fall and I noticed that it looked way healthier and shinier after, it was almost like getting a new head of hair. I would never go that dark again because it was quite the drastic change, but I'm thinking of getting my whole head toned down to at least a dark blonde or a warm light brown. Would this be a wise move? Or should I just steer clear of all colour for a while until my hair has grown out a bit more?