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What Causes Dry Cracks at the Corners of the Mouth? Check 5 Causes and Lip Care Essentials

Health-and-beauty25 Aug 2026 10:46 GMT+7

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What Causes Dry Cracks at the Corners of the Mouth? Check 5 Causes and Lip Care Essentials

What causes dry, flaky cracks at the corners of the mouth? Check the five main culprits harming your lips and get a list of skin recovery items beauty enthusiasts should carry to say goodbye to peeling lips and restore moisture for healthy, beautiful lips.

Five causes of dry, cracked mouth corners, along with essential lip care items to carry with you.

Dry, cracked corners of the mouth that peel cause discomfort, making lipstick application uneven and eating painful. Many wonder what causes this and how to manage it during the day. Medical information indicates this problem often stems from our daily habits.

Discover the five causes of dry, flaky cracks at the corners of the mouth.

Before looking at remedies for dry, cracked mouth corners, check if you are unknowingly doing any of these behaviors.

  1. Frequently licking your lips. Saliva contains enzymes that break down the skin's natural protective barrier, so the more you lick, the drier your lips become.

  2. Drinking too little water. When the body is dehydrated, the skin on the lips, which lacks oil glands, is one of the first areas to show dryness and cracking.

  3. Being in an air-conditioned room with cold, dry air, which constantly pulls moisture from the skin.

  4. Deficiency in vitamin B2 and iron can cause inflammation at the corners of the mouth, a condition known as "angular stomatitis" or "angular cheilitis."

  5. Allergic reactions to products used. Some chemicals in toothpaste, mouthwash, or lipstick can irritate the delicate skin at the corners of the mouth.

Lip care essentials you should carry to address "dry corners of the mouth."

Once you understand the causes, daily care becomes vital. Here are three must-have items to carry to combat dry, cracked mouth corners.

1. Lip balm containing ceramides or shea butter.

Avoid lip balms with fragrances or menthol as they may increase irritation. Choose formulas focused on moisturizing and reinforcing the skin barrier, such as those with ceramides, waxes, or petroleum jelly. Reapply immediately when lips start feeling dry or tight.

2. A portable water bottle.

Sipping plain water regularly throughout the day is the simplest and most effective way to address dryness from within. Carrying a personal water bottle helps remind you to drink eight glasses daily, restoring skin moisture from inside.

3. Gentle toothpaste.

For those with braces or who brush during the day, choose toothpaste free from SLS (foaming agents) and with appropriate fluoride levels to minimize the risk of allergies or irritation around the mouth corners.

Managing dry, cracked corners of the mouth is straightforward by avoiding harmful behaviors like lip licking and regularly moisturizing with gentle lip balm, alongside adequate water intake. However, if inflammation, intense redness, or persistent sores occur, consult a dermatologist to check for infections or allergies.