I nurtured a fairy with the responsive trait so I can have the best possible lab assistant, but when aplying tattos I accidentally put two natures ones... making me lose 1 ma.

as the title says... is there a way to remove/override tattoos? I mean in game way, if  to edit save or other cheat method, I'd rather find another fairy/drow.

I don't know, I haven't found anything like that in the code.
I suppose this could be a nice feature to add to the lab.