How long will a bottle of KeVita™ and its probiotics last after it’s opened?

There are so many variables on how people handle their opened bottles that we find it hard to say for sure. If you close the lid tightly after opening, keep it cold and pour out a portion (rather than sip directly from the bottle) and drink within a few days of opening, KeVita should retain its value.  It is hard for us to say exactly how long it will take for the probiotics to no longer be viable as people treat open bottles differently.