Storing supplements properly while traveling is crucial to maintain their potency and prevent degradation from heat, light, and moisture. The gold standard is to keep them in a cool, dry, and dark environment, ideally between 15°C and 25°C. For organization, you should use an airtight, opaque pill organizer or keep them in their original labeled bottles to avoid confusion and potential issues with customs or security. It is highly recommended to pack your supplements in your carry-on bag rather than checked luggage; the cargo hold of an airplane can experience extreme temperature fluctuations that may cause softgels to melt or vitamins to oxidize. If you are traveling to a humid or tropical climate, consider adding a small silica gel desiccant pack to your container to absorb excess moisture. Additionally, avoid leaving your supplement case in a hot car or on a sunlit windowsill. If you are carrying powders, ensure they are in a sealed, waterproof bag to prevent spills, and always keep a digital or physical copy of your prescriptions or supplement list in case of questions at the airport.