Vital 3® is a completely natural product that works with your body to improve joint comfort. Many people using Vital 3® have experienced dramatic improvement in joint comfort, flexibility and mobility.ital 3® has truly life-changing results for many people. Try it at no risk and see if Vital 3® works for you. Vital 3® is a safe, natural liquid nutritional supplement designed to improve joint comfort, flexibility and mobility. Instead of masking pain, Vital 3® supports improved joint comfort and range of motion.