Why your lip balm
stopped working.

Almost everyone has had the experience. You buy a lip balm, it feels wonderful for an hour, and by the end of the week you cannot leave the house without it. The lips underneath seem worse than when you started. It is easy to conclude the balm is doing something to you.

Mostly it is not. What is usually happening is simpler, and it has to do with the difference between covering skin and giving it something.

Occlusives sit on top. Waxes, butters and heavy oils form a layer that slows the water already in your skin from evaporating away. That is the whole job. A good occlusive does not add moisture, it keeps what is there from leaving. Beeswax, shea, mango butter and jojoba all work this way, and so does petroleum jelly, which is why it has survived a century of better-marketed replacements.

Humectants pull water in. Glycerin, hyaluronic acid and honey draw water towards themselves. In a humid room that water comes from the air. In a dry one — a plane, a heated office in February, most of Utah in winter — there is not much water in the air to pull, so a humectant can end up drawing it up from deeper in your skin, where it then evaporates off the surface. That is the mechanism behind balms that seem to make lips drier the more you use them.

This is why a lot of lip products list glycerin high up and still leave you reapplying. It is not a conspiracy to sell more balm. It is a formulation that works beautifully in a humid climate and badly in a dry one.

The other half is behaviour. Lips have no oil glands of their own and a much thinner barrier than the skin around them, so they lose water faster than anywhere else on your face. Licking them feels like relief and is the opposite: saliva evaporates in seconds and takes surface water with it, and it contains digestive enzymes that are not kind to thin skin. Mouth-breathing through a cold does the same thing more slowly.

Menthol, camphor and phenol are worth a look on an ingredient list too. They produce a cooling tingle that reads as "working," and for some people they are mildly irritating with repeated use. If your balm tingles and your lips are getting worse, that is the first thing to change.

What actually helps. A simple occlusive balm with no humectant and nothing that tingles, applied before your lips are already cracked rather than after. Water, because no topical product fixes dehydration from the outside. A humidifier if you sleep somewhere dry. And not licking, which is far easier to say than to do.

If your lips are cracked at the corners, bleeding, or not improving over a few weeks, that is worth a pharmacist or a doctor rather than another balm. Angular cheilitis, a B-vitamin deficiency and contact allergy all look like "very dry lips" and none of them are solved by a tin.

Where we land. Glo Girl is an occlusive balm with no glycerin, no menthol and no camphor — butters, plant oils and beeswax, and that is most of the story. It is not magic. It is a decent lid on the moisture you already have, which is all any balm honestly is.

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