Sorry to hijack a bit, but i"m also interested in this question, plus I've one to add. Has anyone had a scar in their linea nigra? I've got a ~1" scar (vertical from the bellybutton) which now looks really ugly and dark/discoloured - it's like the linea nigra colouring has gone through the scar in a kinda zig-zag way - so it all looks kinda dark & dirty from the belly button down for that inch. I'm guessing if the line doesn't normally disappear then the scar will stay dark too?