* For Longer Life * Healthy Cell Support * Dietary Supplement RNA (ribonucleic acid) is a nucleic acid that is found in the nucleus and cytoplasm of cells where it plays an important part in protein synthesis and cellular renewal. Adequate amounts of RNA in the body are essential to every aspect of good health and well-being. Supplementation with RNA derived from yeast may support healthy cellular division, as well as help boost the immune system response.