What Causes Constantly Chapped and Peeling Lips?

Dry lips, cheilitis, and other conditions can all cause chapped lips. During winter, cold weather and low humidity leave the lip skin chronically dehydrated, making it prone to dryness and peeling. Chapped and flaking lips may result from contact with allergens or prolonged sun exposure, which compromises the protective barrier function of the perioral skin, leading to cracking and desquamation. Applying an oil-based lip balm can help moisturize and protect the lips; daily use is recommended to prevent chapping and flaking.