HMF probiotics don’t require refrigeration. The only time the company recommends icing them for transport is during extreme heat in the summer or unless they won’t be used for extended periods. They’ve done lab testing and shown this to be true. I’ve also confirmed this with my naturopath, who said this also makes them a good choice to travel with. They should be fine, but if you paid for refrigeration, you might be able to get a discount.