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Best Ubiquinol featuring Kaneka's QH™ contains the reduced form of coenzyme Q10. Both ubiquinol (CoQ10-H2) and ubiquinone (CoQ10) are metabolically active, and are interchange- able in the body according to needs. Each form has unique roles in cells including antioxidant actions, supporting healthy heart functioning and enhancing energy production*. Oral ubiquinol may offer improved bioavailability in individuals who have difficulty achieving high levels of this nutrient, such as aging adults or those concerned with nutrient absorption*.
Although ubiquinone (oxidized coenzyme Q10) and ubiquinol (reduced coenzyme Q10) are kept at a constant ratio within the body, the majority of the total coenzyme Q10 pool is made up of ubiquinol. In fact, when ubiquinone is taken orally, much of it appears to be rapidly converted into ubiquinol. 1,4 Ubiquinol functions as a potent antioxidant in humans, including in low-density lipoproteins (LDLs) where it protects them from oxidative damage.1,4,5 The coenzyme Q10 molecule can be found in all membranes throughout cells.6 It appears to works in conjunction with both vitamin E and vitamin C to provide antioxidant actions throughout the body.7
Coenzyme Q10, with its widespread distribution throughout the body, plays a crucial role in mitochondrial physiology as a critical member of the electron transport chain. This transport chain, which is part of cellular respiration, leads to the formation of adenosine triphosphate (ATP), our body’s primary energy source. Levels of this key nutrient may decline as a healthy person ages.7,8 Animal studies have found that supplementation can restore normal levels in certain tissues 6, and human studies suggest that supplementing with this enzyme may have increased benefits when a person has depleted levels. 7
Concentrations of coenzyme Q10 are understandably high in the heart as these muscle cells require high levels of energy to constantly function optimally. A number of studies (both animal and human) strongly suggest that coenzyme Q10 supplementation is supportive for healthy heart functioning and for maintaining cardiovascular system health.7,9
1.Mohr, D., V.W. Bowry, and R. Stocker, Dietary supplementation with coenzyme Q10 results in increased levels of ubiquinol-10 within circulating lipoproteins and increased resistance of human low-density lipoprotein to the initiation of lipid peroxidation. Biochim Biophys Acta, 1992. 1126(3): p. 247-54.
2.Weber, C., et al., Effect of dietary coenzyme Q10 as an antioxidant in human plasma. Mol Aspects Med, 1994. 15 Suppl: p. s97-102.
3.Okamoto, T., et al., Human serum ubiquinol-10 levels and relationship to serum lipids. Int J Vitam Nutr Res, 1989. 59(3): p. 288-92.
4.Hosoe, K., et al., Study on safety and bioavailability of ubiquinol (Kaneka QH) after single and 4-week multiple oral administration to healthy volunteers. Regul Toxicol Pharmacol, 2007. 47(1): p. 19-28.
5.Stocker, R., V.W. Bowry, and B. Frei, Ubiquinol-10 protects human low density lipoprotein more efficiently against lipid peroxidation than does alpha-tocopherol. Proc Natl Acad Sci U S A, 1991. 88(5): p. 1646-50.
6.Crane, F.L., Biochemical functions of Coenzyme Q10. Journal of the American College of Nutrition, 2001. 20(6): p. 591-598.
7.Jones, K., et al., Coenzyme Q-10 and cardiovascular health. Alternative therapies, 2004. 10(1): p. 22-31.
8.Schulz, C., et al., Comparison of the relative bioavailability of different coenzyme Q10 formulations with a novel solubilizate (Solu Q10). Int J Food Sci Nutr, 2006. 57(7-8): p. 546-55.
9.Coenzyme Q10. Monograph. Altern Med Rev, 2007. 12(2): p. 159-68.
*Statements on this site have not been evaluated by the Food and Drug Administration. Products on this site are not intended to diagnose, treat, cure, or prevent any disease.
Prices are subject to change at anytime and without notice. The majority of the product information has been reprinted from the manufacturer.