How many times have you looked at a celebrity and wished you could have full or long locks like they do? I will let you in on a little secret, most of them use extensions. Now you may think, I don't want longer hair, I just want my hair to be thicker. Extensions can be used for a variety of looks. There is the traditional use of adding length, but they can also add thickness to thin hair at any length. My favorite little trick with extensions, is to use them to add color. Ha