I used a powder type hair color similar to the one Nay recommended called Fushion. I've never seen it in Sally's so you may have to go to an independent beauty supply store to find it. I recently did my color touch up this weekend. I had originally used to the off black color but I wanted a deeper black. I mixed half the powder of the off black with half the powder of the jet black, because I also didn't want the 'weave black' that you get with some black hair dye. It came out very natural. Now this color is permanent but it also has no chemicals in it. For some reason a lot of the semi-permanent black dyes don't last long at all, especially if you wash your hair frequently. But this one lasts a long time, it keeps the deep color. I'm surprised that Nay's color didn't last because Bigen is supposed to be really good for getting black hair and keepin it. I wonder what happened?