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Heart/Inflammation

MitoQ

Mitochondria-targeted antioxidant that may improve vascular function and reduce oxidative stress markers in specific populations.

MitoQ
42
score
C
evidence
Caution
risk

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Use with caution

This supplement may interact with medications, medical conditions or sensitive populations. Review safety before use.

Quick Take

Expensive niche antioxidant with preliminary vascular benefits; skip unless cost is no concern.

MitoQ is a mitochondria-targeted coenzyme Q10 analog synthesized by linking ubiquinone to a lipophilic triphenylphosphonium cation; it is not found in food. The molecule concentrates inside mitochondria, where it neutralizes reactive oxygen species at their source and preserves membrane potential. Human trials suggest modest improvements in endothelial function in older adults and reduced oxidative stress biomarkers in chronic disease, though data are limited and mixed.

Potential benefits

01
Reduces oxidative stress markers
02
May improve endothelial function
03
May lower liver enzymes in hep C
04
May lower inflammatory markers

Protocol

Amount
10-20 mg
Frequency
Once daily
When
Morning with food to minimize nausea; absorption does not depend on dietary fat.

Onset Time

6-8 weeks for biomarker changes in small trials.

Who Should Consider

Older adults with declining vascular function
People with elevated oxidative stress markers
Individuals with chronic hepatitis C
Adults interested in mitochondrial aging research

How It Works

The triphenylphosphonium cation drives MitoQ into mitochondria against the electrochemical gradient, achieving concentrations hundreds of times higher than standard CoQ10. Within the matrix, the ubiquinone head is recycled by the respiratory chain to neutralize superoxide and lipid peroxides locally, limiting oxidative damage to mitochondrial DNA and membranes without systemic distribution.

Updated 5/19/2026

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