Letharia - sorry you had that response that time. The candy itself should keep for a couple years. I have even kept them in my car (and Hawaii it is always pretty warm and humid) with no problem. Because it is a different delivery method you might feel more of a change depending upon your bodies biology that day - via dehydration, empty stomach, full stomach, etc.
Please let me know how it does. Aloha, Steve
Please let me know how it does. Aloha, Steve