Best CoQ-10 is an antioxidant that supports cellular energy production and provides wide-ranging cardiovascular support. CoQ-10 plays a critical role in energy (ATP) production and is one of the most powerful known lipid-soluble antioxidants, protecting cells, organs and tissues from damage caused by oxidative stress and free radicals. CoQ10 inhibits protein and lipid oxidation and protects mitochondrial DNA from oxidative damage. This formulation is highly concentrated for those that need to quickly and effectively increase levels of CoQ10.