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.
Just apply a few drops on cleansed skin as your last step in the evening and the potent trans-retinol ester will work to fight fine lines and loss of elasticity while the blend of calming essential oils (Blue Tansy, Chamomile, avocado seed oil) will keep redness and irritation at bay.