Why is My Lower Lip Dry?

Dry lower lips are a common issue with several possible causes. Often, it's due to environmental factors or habits.

Environmental factors: Cold, dry weather, sun exposure, and wind can all contribute to lip dryness. The lower lip, being more exposed, is often affected more significantly. [Reference: Cold, dry weather, sun damage, and frequently licking your lips are just some of the reasons your lips might feel dry and chapped.]
Dehydration: Insufficient water intake leads to dry skin, including your lips. [Reference: Dry lips can also be caused by dehydration or malnutrition. Dehydration causes symptoms including...]
Licking your lips: While it seems counterintuitive, constantly licking your lips actually worsens dryness. Saliva evaporates quickly, leaving your lips drier than before. [Reference: Cold, dry weather, sun damage, and frequently licking your lips are just some of the reasons your lips might feel dry and chapped.]
Certain foods and drinks: Spicy foods or those containing alcohol or caffeine can irritate and dry out lips.

Less Common Causes

Actinic cheilitis: This precancerous condition causes dry, scaly patches, often on the lower lip. It requires diagnosis by a dermatologist. [Reference: Actinic cheilitis is a precancerous condition that turns one or both lips dry and scaly. A board-certified dermatologist can diagnose the cause.]
Nutritional deficiencies: A lack of certain vitamins or minerals can affect overall skin health, including your lips. [Reference: Dry lips can also be caused by dehydration or malnutrition.]
Medication side effects: Some medications list dry lips as a potential side effect. Check your medication information if you suspect this.

Hydration: Drink plenty of water throughout the day.
Lip balm: Regularly apply a lip balm containing ingredients like petroleum jelly, beeswax, or shea butter to create a protective barrier. Consider using a lip balm with SPF during sun exposure. [Reference: A lip balm containing petroleum or beeswax will provide a barrier...]
Avoid licking your lips: Consciously avoid licking your lips to prevent further dryness.
Address underlying conditions: If dryness persists despite these measures, consult a doctor or dermatologist to rule out any medical causes.