Thank you for your question. I highly recommend that the products you choose to take along when traveling get put into your luggage and not your hand- luggage. This makes life easier as there is no size limit when doing it this way. I do recommend that you decant a maximum amount of 30ml of our NeoStrata Problem Dry Skin Cream, applying it before the flight and again after the flight. This will protect the skin’s barrier that is often compromised after a long flight. I would also recommend that you perhaps take an oral supplement to aid in preventing break-outs for example; Ovelle from Lamelle. For more information feel free to research these products or visit your nearest Skin Renewal Branch. You can locate our branches on www.skinrenewal.co.za. All the best with your travels.