Well, it is used on the scalp, but for me mostly in areas where there is enough hair to make it look like the scalp is covered. There is a spot on my crown, though, that is a true bald spot. I use dermmatch there also, and it still seems to work, maybe because its small enough to keep people from looking at it. However, if the spot got any bigger, I think it would look like a paint job. Frankly, I don't know how much longer I can keep this up. I'm hoping that with Propecia and Minoxidol everything stays the same, (which still isn't great but its better than losing more hair). I should also say that I don't like having to rely on cover ups like dermmatch and toppik, but I don't like being bald and I don't have the money (or the courage)yet for a hair transplant.