CoQ10 (or coenzyme Q10) is an essential nutrient your body requires for healthy mitochondrial function, a process that produces energy at the cellular level. As a result of this, it makes sense that CoQ10 is concentrated in high-energy organs such as your brain, liver, kidneys, and (most importantly) your heart. Ubiquinone is the traditional form of CoQ10 and is difficult for the body to absorb. Ubiquinol is a different form of CoQ10, and has been shown to absorb up to 8 times better than ubiquinone. Ubiquinol is a prime ingredient which can help protect your body from free radicals and oxidative stress. Life Extension offers a highly bioavailable form of ubiquinol CoQ10 in a patented delivery system with superior absorption levels.