This may seem counterintuitive, but certain lip balms can actually make lips feel drier and more chapped after using them over a period of time. They could include irritating ingredients like cinnamon oil, causing contact dermatitis. They could be formulated with only humectants, which, if the air has low humidity, could pull the moisture out of your skin and then it evaporates away.

Or the most likely culprit is that the lip balm contains mineral oil. You see, mineral oil actually has a very large molecular size, making it difficult to impossible to actually penetrate the skin—meaning moisture can’t wiggle its way down into the epidermis. 

As you avoid all of these problem ingredients, instead Zalka recommends looking for ingredients like botanical or beeswax, plant based oils (like moringa seed oil), and butters (such as shea butter).