Winter has especially dry air, so make sure to increase hydration during this season.
Drink at least the recommended 8 glasses of water a day.
Avoid going out in harsh conditions without protection. Exposing your lips to the sun, wind, and cold will dry them out. Always apply a lip balm or cover with a scarf before venturing out.
Seal in moisture with a lip balm or chapstick that contains sunscreen to prevent sunburning (yes, lips can sunburn too!).
Apply thirty minutes before going outside.
If swimming, re-apply often.
Check your intake of vitamins and other essentials. Having any vitamin deficiencies can cause your lips to dry and crack. Make sure you are getting enough of the following vitamins and minerals, and speak with your doctor if you aren't sure you're getting enough:
Essential Fatty Acids
Apply a moisturiser. Using a moisturiser will help your lips to stay hydrated and to absorb moisture more easily. Moisturisers are an essential part of keeping your lips as hydrated as they can be. Look for the following ingredients in your moisturisers:
Vitamin E Oil
Use lip balm. Apply a lip balm to promote healing and prevent chapped lips. Lip balm also helps to seal in moisture and protect your lips from outside irritations.
Apply lip balm every hour or two to treat dry lips and to keep them healthy.
Use balm with SPF of at least 16 to save your lips from sun damage.
Apply lip balm after you have applied a moisturiser.
Find a balm that has beeswax, petroleum, or dimethicone.
Rule out allergies. You may be allergic to substances that come in contact with your lips. Fragrances and dyes are common culprits. If you frequently get chapped lips, use only products on them that have no fragrances or dyes.
Toothpaste is another common culprit. If your lips itch, feel dry or painful, or blister after brushing your teeth, you may be allergic to the ingredients in your toothpaste. Try switching to a natural product with fewer preservatives, dyes, or flavourings.
Lipstick is the most common cause of contact cheilitis (contact allergy) on the lips for women, but toothpaste is the most common cause for men.
Don't lick your lips. Licking your lips will cause more chapping. Even though it might seem like this helps keep them hydrated, it actually dries lips out. In fact, "lip licker's dermatitis" is frequently seen in people who lick their lips too much, and can cause an itchy rash around the mouth.Use a lip moisturiser instead.
Avoid using flavoured lip balms, as this may encourage licking your lips.
Don't over-apply any product as this may also cause you to lick your lips.