As we age, the amount of CoQ10 that we absorb or produce naturally declines. In addition, CoQ10 may be depleted by several other factors, including overall nutritional status and inadequate levels of the B vitamins, vitamin C,and selenium. A high quality, bioavailable CoQ10 supplement, such as CoQuinone 30 can help replenish our cells' stores of CoQ10, and help hardworking cells, such as those in the heart, stay healthy.