The Paradox of Coenzyme Q10 in Aging

Researchers reviewed earlier studies on coenzyme Q10, or CoQ10, a substance cells use to make energy and protect themselves from damage. They found that CoQ10 may decrease inside some tissues as people age, while blood levels can stay the same or even rise. This may happen because older cells use CoQ10 less effectively. Studies of CoQ10 supplements have not consistently shown that they slow aging or improve health in otherwise healthy people.

What this means for you: This review does not show that buying a CoQ10 supplement will slow aging. Evidence is mixed, and the review itself was not a new human treatment trial.