New Roots Herbal L-Taurine - 500 mg - A conditionally essential amino acid used to support cardiovascular function. Taurine is found in large concentrations within the brain, retinas, and heart, and as a structural compound in specialized blood cells called platelets, which are responsible for clotting. Taurine is an important component in bile, which acts like soap, helping your body break down fats and fat-soluble vitamins.