Coenzyme Q10 has at least two important roles in the body. First, it is one of the essential cogs in the biochemical machinery that produces biological energy (ATP) inside the cells. Second, CoQ10 is an antioxidant. It helps neutralize harmful free radicals, which are one of the causes of aging. Under perfect conditions, the body can produce as much CoQ10 as it needs. However, various factors, such as aging, stress and some medications, can lower the levels of CoQ10 in the body. As a result, the ability of cells to withstand stress and regenerate declines. Unfortunately, the levels of CoQ10 in the body almost inevitably decline with age. In fact, CoQ10 is regarded as one of the most accurate biomarkers of aging since its decline correlates so well with the aging process. In some studies, rodents treated with supplemental CoQ10 lived up to 30 percent longer than their untreated counterparts.
In most people over thirty, levels of CoQ10 in the skin are below optimum, resulting in lesser ability to produce collagen, elastin and other important skin molecules. Besides, CoQ10-depleted skin may be more prone to the damage by free radicals, which are particularly abundant in the skin since it is exposed to the elements. Thus, CoQ10 may boost skin repair and regeneration and reduce free radical damage. Furthermore, CoQ10 is a small molecule that can relatively easily penetrate into skin cells.