Why Are My Lips So Dry? -- Causes and Cures
Don't forget the sun protection. 2008 research from the Baylor University Medical Center, Dallas found lip balms and glosses, particularly the shiny ones, attract the sun's rays and may increase your risk of skin cancer. Use a lip protection with at least an SPF 15 and make sure it's applied below your shiny gloss or balm before you go out.
You should also consider using sesame oil regularly as a lip moisturizer. Sesame oil raises the levels of certain antioxidants in your lips and skin which block sun radiation damage.