Coenzyme Q 10 (CoQ10), or ubiquinone, is a vital coenzyme and antioxidant essential for cellular energy production and overall health. It is a key component in the mitochondrial production of adenosine triphosphate (ATP), which is crucial for powering biological reactions and maintaining cellular vitality. Naturally occurring in the body and found in foods like meats and nuts, CoQ10 levels decrease with age and in various health conditions. This decrease is also exacerbated by certain medications, including statins, which reduce cholesterol but also lower CoQ10 levels. Supplementing with CoQ10 can help replenish these levels, potentially improving conditions such as heart failure, high cholesterol, diabetes, migraines, and enhancing physical performance. Its role in energy production makes it particularly valuable for boosting immune response, especially important in combating infections like COVID-19 and managing post-viral fatigue syndromes.