For me, nothing beats aquaphor healing ointment. I use that, not the actual aquaphor lip balm. You can buy it in tiny lip balm sized tubes so it’s portable too. And sometimes I put Nuxe reve de miel lip balm underneath it, if my lips are extra dry. But the aquaphor needs to go on top, cos it’s moisturising and occlusive, and it stops moisture evaporating as well as protecting your lips from the wind and the cold.