Which countries are you visiting? How long is a few weeks? 3, 4, or 5? It wouldn't be too tough to hide a ML or two among your toiletries in a worst-case scenario. I've thought about going the test U route. Don’t take my word for it, but I think you'd want to inject 1000mg before leaving. If you're away for 4 weeks, depending on your travel duration and countries, that might be the best approach. Just pin test U and forget about it. It’s probably the safest option and you won't have any worries. You could also consider ordering some Test cream and trying to smuggle that through. Oil might work just as well, just ensure you can get pins in the country you’re visiting. You could try to grab a few amps or a vial in the countries you're going to. There are many EU domestic sources here that ship, so you could probably have something delivered along your route. Some countries might even have test available over the counter. You might find it easily at a local gym if you're savvy about buying on the street or black market. Pro tip: go in expecting to pay a premium. If your trip is just 3 weeks, a couple ML of sustanon should keep your libido up for almost that long. With test U, I think you'll need at least 750 or 1000mg right before you leave. But I could be mistaken!