To create cellular energy, the body has to convert ubiquinone into ubiquinol. Aging and other factors however slow down or stop this conversion from happening, leading to low CoQ10 levels. If you are one of these that has a problem converting ubiquinone, then ubiquinol will have an even stronger effect, in comparison with ubiquinone. The ability to convert ubiquinones into its usable form decreases with age. Some studies show ubiquinol as being up to 8 times as bioavailable as ubiquinone.