NADH+Ubiquinol is a dynamic combination of 2 powerful co-enzymes. CoQ10 (ubiquinol) is utilized by every cell in the body to improve energy production and prevent oxidation. NADH (nicotinamide-adenine dinucleotide) is a reduced form of the B vitamin niacin. It is vital to neurotransmitter function and cellular energy production. The highest concentrations of these two important coenzymes are found in the brain and heart.