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.
Also, the brand should use 100% pure, high-quality essential oils that do not contain any synthetic additives. Do your own research or ask a trusted friend to find a brand that is reputable. My daughter (3yrs old) and I have had extremely chapped lips. Mine were cracked, and my daughterâs were so bad when she woke up one morning, it looked as though there were dry blood on them : (. All I had on me was my Lavender essential oil and my Cinnamon chap-stick (both from Young Living).