Resurrecting an old thread in the cold dry weather. I used to swear by Lip Medex in the little blue jar, but have switched to Burt's Bees Vitamin E and Peppermint. Readily available everywhere because I'm always losing it.
Long ago I received a L'Occtaine Shea Butter lip balm in an airline amenity kit. It's easily the best lip balm I've ever used, and worth tracking down even though it runs about $10 a tube.