DNA. complementary DNA (cDNA), copy DNA DNA transcribed from a specific RNA through the action of the enzyme reverse transcriptase. mitochondrial DNA (mtDNA) the DNA of the mitochondrial chromosome, existing in several thousand copies per cell and inherited exclusively from the mother.
Castor Oil. Castor oil is another good treatment for dry and chapped lips. Simply apply castor oil to your lips several times a day. You can also make a soothing treatment using one teaspoon of castor oil, one teaspoon of glycerin and a few drops of fresh lemon juice.
Get my dermatologist-recommended information and tips for your chapped and dry lips If your dry, chapped lips wonât heal, hereâs what to do: If your lips are chapped due to the weather: Exposure to harsh weather and wind pull moisture out of your skin, including your lips. The solution is to moisturize your dry lips with a simple, high quality lip balm. The two tried and true products that I use in my practice are Nutritic Lip Balm and EltaMD Lip Balm SPF 31.