Many lip balms contain mineral oils derived from petrochemicals. Their advantage is simple: they create an immediate protective film that gives the impression that the lips are repaired.
But in reality, these ingredients act primarily as a occlusive barrierThey prevent water from evaporating without actually nourishing or repairing the skin. Lips can then become dependent on the product: as soon as the effect wears off, the feeling of dryness returns.
For truly comfortable lips, it's best to choose ingredients that can... nourish and support the skin barrier, rather than simply masking the problem.