Thinning hair? Did you know you can make it appear thicker by the strategic use of color? By that I mean if you color your root line to deal with any regrowth you're also making the roots look a bit darker. Not only does this touch up your color it will also create the illusion of thicker hair. That's because roots that are a bit darker make your hair appear to be fuller and more dimensional.
Still if that sounds at all appealing you might first want to stop and ask yourself some questions. Or at least think about these points which can help you decide among the many hair color options. Since the goal is find out which will actually work out best for you and your hair.