Correct, I clean my vintage with cleaner from apple, but even I test it in an area that's not going to be visible to make sure the leather and dye will take the cleaner w/o the bag loosing to much dye or coloring. You never know when a bag has been tampered w/ with dyes or polish. If it has no liner, and there is nothing else on the bag you are concerned w/ being soaked by water a good water and soap bath is always a safe option as long as you let it dry and stuff it with towels during it's drying phase to re-align the leather to dry properly. Lexol can be used (conditioner like apple) on some of the more vintage pieces but some find it more greasy than apple.^^They do sell the 8 oz. bottle of Apple Care conditioner separately on their website. None of my purses have ever gotten so dirty that I need to consider a stronger type of cleanser. I can't really answer that question. Bunny says she successfully cleans vintage leathers with the Apple cleaner. Just test it on the underside of the handle first to make sure the dye will not come off.