For the majority. Ubiquinol-QH is used for general support. Since it makes up well over 90% of the CoQ10 found within the body's plasma. it is most important for those that suffer higher levels of physical or oxidative stress or those that show no response to general CoQ10 supplementation. This is believed to be because their bodies do not easily convert the coenzyme to ubiquinol. This then means that taking ubiquinol directly allows the body to utilize it directly. In addition. the product is also known for its support of the cardiovascular system. It helps maintain healthy levels of fat in the bloodstream and even promotes increased physical activity and an improved quality of life.