I would honestly go with Fedex International Overnight Clinical Pack b/c this is what Cell Trend prefers and uses. UPS might not be familiar with it and I could see something potentially going wrong.
Does anyone recall specifically what needed to be on the label to be sure it easily gets through customs? I plan to read on it tomorrow, because I am worried I'll get a newbie at FedEx. The last time I shipped blood within the country, the FedEx employee was very weirded out. It was hilarious since I'd shipped several times before without that reaction.
Do we need both the red gray and gold tubes or is either one fine.