i end up buying hoisin sauce at the supermarket when i don't have a chance to get to chinatown to find a brand that looks "authentic." however, the sauces vary so much in flavor that i'm not even sure what the stuff is supposed to taste like! looking through my pantry now, and reviewing the ingredients lists, i see that they are oftentimes made from completely different ingredients. most are heavy in some sort of sweetner. they seem to have varying amounts of soy product, and some contain tomato paste. the bottom line is, they are all quite different in flavor. what should one look for on a label? if anyone could go as far as to suggest a brand, that wouldn't hurt either.