Don't know, never tried it on old stains. The wife never lets me miss a stain when I make a mess of my shirt front when eating out. All I can suggest is try it! If it works, hooray! If it doesn't you are no worse off than before.
Each wipe is in its own sealed ‘envelope’ and there are 12 that you tear apart. They are packaged very similar to a wet hand wipe you might get at a restaurant when you order ribs. Once one of these individual packs are opened, they’ll dry up within the day.
