This is not the coverage of the old Dermablend cover up. This is very similar in texture to Pan-stick if you remember that. Strong coverage with some "slide". As in, I couldn't have worn this often in my younger years because it feels quite like it would have aggravated my skin.  Still, it covers my skin irregularities but I don't have anything like a birth mark and not sure it would cover something like that. I'd try it in person first.