Doctor's Best Ubiquinol featuring Kaneka QH 100mg Capsules 60

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$62.90 $94.90



  • Mitochondrial support to enhance cellular energy production.
  • Supports healthy heart function.
  • Powerful antioxidant action.

Doctor's Best Ubiquinol featuring Kaneka QH® contains the reduced form of coenzyme Q10.  Both ubiquinol (CoQ10-H2) and ubiquinone (CoQ10) are metabolically active, and are interchangeable 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.

Ubiquinol is required for 95% of your cellular energy production and is found in every cell in your body. The highest concentration of this essential nutrient is in your heart. It exists in two forms: CoQ10 (inactive) and Ubiquinol (active). In a healthy adult, 95% or more of the total coenzyme Q10 in the body is in the Ubiquinol form. 

Ubiquinol promotes optimum heart heath and helps maintain cardiovascular health. Until recently, the only supplement available was in the CoQ10 form, which must first be converted to Ubiquinol to be used by your body. In 2007, Kaneka Nutrients developed the first supplement in the Ubiquinol form. Studies suggest that Ubiquinol has superior absorption and can replenish the normal CoQ10 plasma concentration. In several studies, Ubiquinol increased by an average of 4x in healthy people taking 150-300 mg per day.


Active ingredient per soft gel capsule:
Ubiquniol (Kaneka QH® reduced form of CoQ10)     100mg

Other Ingredients: Extra virgin olive oil (non-GMO), gelatin (capsule), medium-chain triglycerides, glycerin, sunflower lecithin, beeswax, rosemary extract, mixed tocopherols, annatto (color).

Contains nothing other than listed ingredients.


Adults: Take 1 softgel capsule daily with food, or as recommended by your healthcare professional. 


Ubiquinol has powerful antioxidant actions in target cells

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 the bloodstream.1, 4, 5 The coenzyme Q10 molecule can be found in all membranes throughout cells.It appears to works in conjunction with both vitamin E and vitamin C to provide antioxidant actions throughout the body.7

Coenzyme Q10 supports mitochondria to enhance cellular energy production*

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 

Coenzyme Q10 supports healthy heart functioning*

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

Scientific References

  1. Mohr D, Bowry VW, Stocker R. Biochim Biophys Acta 1992;1126:247-54.
  2. Weber C, Jakobsen TS, Mortensen SA, others. Mol Aspects Med 1994;15 Suppl:s97-102.
  3. Okamoto T, Matsuya T, Fukunaga Y, others. Int J Vitam Nutr Res 1989;59:288-92.
  4. Hosoe K, Kitano M, Kishida H, others. Regul Toxicol Pharmacol 2007;47:19-28.
  5. Stocker R, Bowry VW, Frei B. Proc Natl Acad Sci U S A 1991;88:1646-50.
  6. Crane FL. J Am Coll Nutr 2001;20:591-8.
  7. Jones K, Hughes K, Mischley L, McKenna DJ. Altern Ther Health Med 2004;10:22-30; quiz 31.
  8. Schulz C, Obermuller-Jevic UC, Hasselwander O, others. Int J Food Sci Nutr 2006;57:546-55.
  9. Altern Med Rev 2007;12:159-68.

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