Holland & Barrett CoEnzyme Q-10 Capsules CoQ10 appears naturally within almost every cell in the body, yet its production declines with age making dietary intake more important. The highest levels of CoQ10 can be found in tissues with high energy requirements such as the heart and skeletal muscles. Holland & Barrett CoEnzyme Q-10 Capsules Extra Info Rapid release softgel capsules Food supplement Holland & Barrett CoEnzyme Q-10 Capsules CoQ10 appears naturally within almost every cell in the body, yet its production declines with age making dietary intake more important. The highest levels of CoQ10 can be found in tissues with high energy requirements such as the heart and skeletal muscles. Holland & Barrett CoEnzyme Q-10 Capsules Extra Info Rapid release softgel capsules Food supplement